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Hytrin (Terazosin)

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Hytrin is a high-quality medication which is taken in treatment of hypertension. It is also used in the treatment of benign prostatic hyperplasia. It is working by tightening of a certain type of muscle in the prostate and at the opening of the bladder.

Other names for this medication:

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Also known as:  Terazosin.


Hytrin is an effective remedy against hypertension. Its target is the treatment of benign prostatic hyperplasia.

Hytrin is working by tightening of a certain type of muscle in the prostate and at the opening of the bladder.

Hytrin is also known as Terazosin, Terapress.


Take Hytrin tablets orally with or without food.

Do not crush or chew it.

Take Hytrin at the same time once a day with water.

If you want to achieve most effective results do not stop taking Hytrin suddenly.


If you overdose Hytrin and you don't feel good you should visit your doctor or health care provider immediately. Symptoms of Hytrin overdosage: fainting, shock, dizziness.


Store at room temperature between 20 and 25 degrees C (68 and 77 degrees F) away from moisture, light and heat. Higher temperatures may cause the capsules to soften or melt. Throw away any unused medicine after the expiration date. Keep out of the reach of children.

Side effects

The most common side effects associated with Hytrin are:

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Side effect occurrence does not only depend on medication you are taking, but also on your overall health and other factors.


Do not take Hytrin if you are allergic to Hytrin components.

Do not take Hytrin if you're pregnant or you plan to have a baby, or you are a nursing mother.

Try to be careful using Hytrin if you are taking nonsteroidal anti-inflammatory painkillers such as Motrin and Naprosyn, other blood pressure medications, such as Dyazide, Vasotec, Verelan, Calan.

If you want to achieve most effective results without any side effects it is better to avoid alcohol.

Be careful in case of machine driving.

Do not stop taking Hytrin suddenly.

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Symptomatic improvement was achieved in 27 patients (96%). Dysuria and intensity of pain diminished in 24 (82%) and 26 (93%) patients. Voiding disorders proved most sensitive to a1-AB. Quality of life rose 2-fold. Probability of the recurrence 1 month after terazosin therapy was 0.29, after 6 months--0.43. Recurrent dysuria occurred in 33%, pain--in 58%.

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The effect of enalapril and terazosin on serum lipid profile was investigated in 36 patients with primary hypertension and hypercholesterolemia (total cholesterol 5.2 mmol l). 6- and 12-week monotherapy with these drugs did not produce any unfavourable changes in: total cholesterol, LDL- and HDL-cholesterol, triglycerides, apolipoproteins A1 and B as well as in serum lipids. Enalapril and terazosin seem to be very useful as a first step monotherapy especially in patients with hypertension and lipid disturbances.

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Standard imaging techniques for evaluation of renal and renovascular disease require the application of radiocontrast medium. The use of high osmolar, ionic radio contrast medium is however associated with adverse effects including acute renal insufficiency. Renal vasoconstriction seems to play an important role in the pathomechanism of this side effect. The cellular mechanisms however remain unsolved. Alpha 1-adrenoceptors and their subtypes are the crucial link between sympathetic stimulation and renal vasoconstriction. We investigated the role of alpha 1-receptors and the alpha 1A and alpha 1B subtypes in the renal artery and in sodium/meglumine diatrizoate induced renal artery smooth muscle contraction. Alpha 1-receptor induced rabbit renal artery contraction was produced by stimulation with the specific agonist phenylephrine which was antagonized dose-dependently and reversibly by the alpha 1-blockers prazosin, terazosin and YM 617. The alpha 1A-receptor was the prevalent receptor subtype in rabbit renal artery. This was identified by applying the specific alpha 1A-receptor antagonist 5-methylurapidil and the irreversible alpha 1B-receptor antagonist chloroethyllonidine. These two inhibited the PE induced contraction by 96% and 66%, respectively. Sodium/meglumine diatrizoate elicited renal artery contraction at 25% of the phenylephrine control. This contraction was not influenced by alpha 1-blockers indicating the absence of an alpha 1-receptor mediated process.

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More than 25% of primary care practitioners begin performing digital rectal examination after patient age 55 years. Compared to prostate specific antigen (PSA) 59% of practitioners believe that digital rectal examination is more sensitive or that the tests are equal, or they do not know. In regard to PSA 11% of respondents begin testing after patient age 60 years, 11% evaluate PSA only if digital rectal examination is abnormal and greater than 3% never evaluate PSA. Approximately 45% of primary care practitioners indicated that PSA of greater than 4.0 ng./ml. signifies prostate cancer regardless of patient age, prostate size or prostatis and 50% think that digital rectal examination elevates PSA in a clinically significant way. Although 93.2% of respondents refer a patient to a urologist after palpating a prostatic nodule, only 51.1% refer for an area of induration. Of the 47.2% of respondents who attempt pharmacotherapy for voiding dysfunction with finasteride, terazosin or both 15% do not know the agent mechanisms of action. Of those prescribing finasteride 68.6% are not aware of its effects on serum PSA. Overall 66.5% of primary care practitioners are not familiar with the American Urological Association Symptom Index while only 15% of those attempting pharmacotherapy use the index as a diagnostic tool.

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A sponsor of an Abbreviated New Drug Application (ANDA) must have information to show that the proposed generic product and the innovator product are both pharmaceutically equivalent and bioequivalent, and therefore, therapeutically equivalent. Many pharmaceutical solids exist in several crystalline forms and thus exhibit polymorphism. Polymorphism may result in differences in the physico-chemical properties of the active ingredient and variations in these properties may render a generic drug product to be bioinequivalent to the innovator brand. For this reason, in ANDAs, careful attention is paid to the effect of polymorphism in the context of generic drug product equivalency. This review discusses the impact of polymorphism on drug product manufacturability, quality, and performance. Conclusions from this analysis demonstrate that pharmaceutical solid polymorphism has no relevance to the determination of drug substance "sameness" in ANDAs. Three decision trees for solid oral dosage forms or liquid suspensions are provided for evaluating when and how polymorphs of drug substances should be monitored and controlled in ANDA submissions. Case studies from ANDAs are provided which demonstrate the irrelevance of polymorphism to the determination of drug substance "sameness". These case studies also illustrate the conceptual framework from these decision trees and illustrate how their general principles are sufficient to assure both the quality and the therapeutic equivalence of marketed generic drug products.

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To our astonishment, we found that prazosin and its analogs which have been reported to have α(1)-antagonistic activity only, were able to shift concentration response curves of angiotensin II.

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The study comprised 121 patients with symptomatic BPH who were randomized to receive 0.5 mg of prazosin twice daily, 0.5 mg of terazosin twice daily or 0.1 mg of tamsulosin once daily for the initial 2 weeks. The doses were doubled for the next 2 weeks. The primary variables assessed were a symptom score, changes in maximum and average urinary flow rate (Qmax and Qave), postvoid residual urine volume and blood pressure.

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Describe and evaluate an Internet-based approach to patient decision support using mathematical models that predict the probability of successful treatment on the basis of meta-analytic summaries of the mean and standard deviation of symptom response.

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Medical treatment of distal ureteral calculi with alfuzosin, doxazosin and terazosin resulted in a significantly increased stone-expulsion rate and decreased expulsion time when compared with HBB. HBB seems to have a negative effect on stone-expulsion rate.

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The goal of this study was to determine the dependence of the acute hypertensive response to a novel model of acute psychosocial stress on the sympathetic and renin-angiotensin systems. Baseline mean arterial pressure (MAP), heart rate (HR), and locomotor activity were measured with telemetry in mice for a 1-h period and averaged 98 +/- 1 mmHg, 505 +/- 3 beats/min, and 5 +/- 1 counts, respectively. Stress was induced by placing a mouse into a cage previously occupied by a different male mouse, and this increased MAP, HR, and activity in the control group by 40 +/- 2 mmHg, 204 +/- 25 beats/min, and 68 +/- 6 counts, respectively. Each variable gradually returned to baseline levels by 90 min after beginning cage switch. Pretreatment with terazosin (10 mg/kg ip) significantly reduced the initial increase in MAP to 12 +/- 6 mmHg, whereas MAP for the last 45 min was superimposable on control values. Atenolol (10 mg/ml drinking water) had no effect to blunt the initial increase in MAP but had a growing effect from 10 min onward, decreasing MAP all the way to baseline by 60 min after starting cage switch. Captopril (2 mg/ml drinking water) treatment caused a very similar response. All three treatments significantly decreased the area under the blood pressure curve, and the blood pressure effect could not be attributed uniformly to effects on HR or activity. These data suggest that our novel model of psychosocial stress causes an initial alpha(1)-receptor-dependent increase in MAP. The later phase of the pressor response is blocked similarly by a beta(1)-receptor antagonist and an ACE inhibitor, independent of HR, suggesting that the beta(1)-dependent blood pressure effect is due, in large part, to the renin-angiotensin system.

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The cumulative incidence of BPH-related prostatic surgery was 15.2% and mainly involved transurethral resection of the prostate (TURP) (13.4%). Patients using alpha-blockers had a significantly increased risk of BPH-related prostatic surgery compared to patients using 5-ARIs, which remained after adjusting for age, calendar time, type of prescriber and chronic disease score (adjusted HR: 1.52, 95% CI: 1.24-1.88). The difference between alpha-blockers and 5-ARIs was sustained after stratification of time period (<1995, > or =1995) and exclusion of patients with prostatic surgery within one month of treatment initiation.

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Alpha-adrenoceptor antagonists (alpha-blockers) are efficacious in treating lower urinary tract symptoms (LUTS) suggestive of benign prostatic obstruction (BPO), also termed symptomatic benign prostatic hyperplasia (BPH), causing bladder outlet obstruction (BOO). There is little difference among the various alpha-blockers in terms of efficacy in treating LUTS. However, conventional quinazoline derivatives such as terazosin, doxazosin and alfuzosin, originally developed for hypertension, have inherent cardiovascular extension effects, which influence the well being and safety of patients with LUTS by impairing physiological blood pressure (BP) control, even when their effect on unchallenged BP may be quite low. Preclinically, tamsulosin, a sulphonamide-substituted phenethylamine, has a relative selectivity for the alpha 1-adrenoceptors of the lower urinary tract. Clinically, this is associated with fewer cardiovascular extension effects with tamsulosin (modified release capsule) 0.4 mg once daily. This allows the use of convenient regimens of 0.4 mg tamsulosin administered once daily after breakfast from initiation of treatment without the need for 'step-up' increases of dose to avoid 'first-dose' hypotension. Extensive investigation, including multiple orthostatic stress testing (which otherwise is unusual in the characterization of alpha-blockers because of their inherent safety), confirms that tamsulosin 0.4 mg definitely carries a lower risk of impaired BP control.

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Induction of apoptosis in prostatic epithelial cells by doxazosin, terazosin and prazosin has been well documented. However, the biochemical pathways of doxazosin action is still unclear. Aforementioned drugs should lead to decrease of prostate volume, although this effect was never observed in patients suffering from BPH after treatment with α1-antagonists. Probably, it is connected with cancer stem cells' resistance on chemotherapeutic agents. The aim of this study was to compare incidence of apoptosis induced by doxazosin in progenitor and differentiated cells isolated from human prostate epithelium.

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The quinazoline-derived alpha1-adrenoceptor antagonists, doxazosin and terazosin have been recently shown to induce an anoikis effect in human prostate cancer cells and to suppress prostate tumor vascularity in clinical specimens [Keledjian and Kyprianou, 2003]. This study sought to examine the ability of doxazosin to affect the growth of human vascular endothelial cells and to modulate vascular endothelial growth factor (VEGF)-mediated angiogenesis. Human umbilical vein endothelial cells (HUVECs) were used as an in vitro model to determine the effect of doxazosin on cell growth, apoptosis, adhesion, migration, and angiogenic response of endothelial cells. The effect of doxazosin on cell viability and apoptosis induction of human endothelial cells, was evaluated on the basis of trypan blue and Hoechst 33342 staining, respectively. Doxazosin antagonized the VEGF-mediated angiogenic response of HUVEC cells, by abrogating cell adhesion to fibronectin and collagen-coated surfaces and inhibiting cell migration, via a potential downregulation of VEGF expression. Furthermore there was a significant suppression of in vitro angiogenesis by doxazosin on the basis of VEGF-mediated endothelial tube formation (P < 0.01). Fibroblast growth factor-2 (FGF-2) significantly enhanced HUVEC cell tube formation (P < 0.01) and this effect was suppressed by doxazosin. These findings provide new insight into the ability of doxazosin to suppress the growth and angiogenic response of human endothelial cells by interfering with VEGF and FGF-2 action. This evidence may have potential therapeutic significance in using this quinazoline-based compound as an antiangiogenic agent for the treatment of advanced prostate cancer.

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The trial was completed in 91 patients. After 4 weeks of treatment, the IPSS lowered, Qmax increased, PVR decreased, BS score reduced, times of HU and NU lessened in both groups (P <0.01). However, comparisons between groups showed that the improvement of IPSS (6.52 +/- 0.41 vs 2.69 +/- 0.36, P < 0.01), Qmax (4.71 +/- 0.70 vs 1.75 +/- 0.55, P =0.001) and PVR (44.79 +/- 9.73 vs 16.97 +/- 4.75, P =0.012) was more significant in the EA group than in the control group respectively, but the size of prostate gland after treatment was not different between groups.

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The objective of the present study was to determine whether the smooth muscle content of the prostate adenoma is related to the clinical response to terazosin, a long-acting selective alpha 1 blocker. Multiple random biopsies of the prostate were obtained from 26 male subjects with symptomatic benign prostatic hyperplasia (BPH) prior to initiating therapy with terazosin. Double immunoenzymatic staining and computer-assisted quantitative color image analysis were utilized to quantify the area density of smooth muscle, connective tissue, glandular epithelium, and glandular lumen. The clinical response to alpha blockade was based upon changes in peak urinary flow rate and the Boyarsky symptom score. A significant direct relationship was observed between the percent area density of smooth muscle and the percent change in peak urinary flow rate. A statistically significant correlation between the percent area density of smooth muscle and the percent change in Boyarsky symptom score was not observed. The percent area density of prostate smooth muscle in the subjects exhibiting a favorable clinical response was 38% greater than the nonresponders (P = 0.068). The clinical response to alpha blockade in BPH is related to the area density of prostate smooth muscle.

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We conducted a meta-analysis of efficacy of tamsulosin 0.2 mg using International Prostate Symptom Score (IPSS), maximal urinary flow rate (Qmax), post-voided residual volume (PVR), and quality of life (QoL). Safety was analyzed using adverse events. Relevant studies were searched using MEDLINE, EMBASE, and Cochrane library from January 1980 to June 2013.

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We evaluated the uroselectivity of a series of alpha1-adrenoceptor antagonists by comparing their potency against phenylephrine-induced increases in urethral perfusion pressure and diastolic blood pressure in the anesthetized rabbit and pithed rat. In the rabbit, Rec 15/2739 (N-[3-[4-(2-methoxyphenyl)-1-piperazinyl]propyl]-3-methyl-4-oxo-2-phenyl -4H-1-benzopyran-8-carboxamide) as well as analogs with a chlorine substituent on the methoxyphenyl ring (Rec 15/2869) or this substituent combined with the replacement of the phenyl substituent on the pyran ring by cyclohexyl (Rec 15/3011) were 2-6-fold more potent against the urethral vs. vascular response to phenylephrine. Rec 15/2841 (N-[3-[4-(2-methoxyphenyl)-1-piperazinyl]propyl]-3-methyl-4-oxo-2-cyc lohexy-4H-1-benzopyran-8-carboxamide) was only 1.5-fold more potent against the urethral response. SL 89.0591 and tamsulosin also showed selectivity for the urethral response (2-2.5-fold), while the quinazolines produced equipotent blockade of urethral and vascular responses (selectivity ratio = 0.9-1.1). The urethral selectivities of Rec 15/2739 and its derivatives were confirmed by evaluation of the response to tilt in sedated, hypovolemic rabbits. Phenylephrine challenge assays did not show any of the antagonists, with the exception of terazosin at 300 microg kg(-1), to be uroselective in the rat (selectivity ratios = 0.2-1.5); potentiation of tilt-induced hypotension in the anesthetized rat showed substantial differences from the rabbit, with Rec 15/2739, but not Rec 15/3011 and Rec 15/2841 showing orthostatic effects equivalent to that observed for prazosin. Hence, Rec 15/2739 was uroselective in the rabbit, but not in the rat, while two of its close structural analogs were highly uroselective in both species. An assay for orthostatic activity in the conscious rat yielded different results, showing prazosin and terazosin, but not Rec 15/2739, to cause a reversal of the pressor response to tilt. Hence, the apparent uroselectivity of an alpha1-adrenoceptor antagonist is both species- and assay-dependent.

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Treatment of ERFH combining with alpha 1-adrenergic receptor blocker for patients with PD or CNP was effective and had little side-effect, while the future curative effect should be observed furtherly.

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This meta-analysis has highlighted a hierarchy concerning the role of α(1)-blockers in IFIS, indicating an extremely sizeable effect size of tamsulosin; this may entail important physiologic implications. Alfuzosin, terazosin, and doxazosin presented with comparable effect sizes. Hypertension, but not diabetes mellitus, emerged as a risk factor for IFIS.

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Terazosin is a selective alpha1-adrenoceptor antagonist. A double-blind, randomized, placebo-controlled, two-period study evaluated the effects of posture and of oral and intravenous administration of terazosin on blood pressure and heart rate in patients with hypertension. At least one week after withdrawal of all antihypertensive medications, 31 patients with sitting diastolic blood pressure of 95 to 114 mmHg were enrolled in the study. After a 24-hour, single-blind, placebo lead-in phase, the patients were randomized to receive either oral terazosin (1 mg on day 1, 2 mg on day 2, and 5 mg on days 3 and 4), a 12-hour intravenous infusion of terazosin (2.5 mg, 5 mg, or 7.5 mg), or placebo for 4 consecutive days. Head-up tilt (60 degrees for 20 minutes) evaluations were performed before and 0.5, 1.5, 2.5, 6, 12, and 16 hours after start of administration during the placebo lead-in phase and on each of the 4 days of the double-blind treatment phase. Blood pressure and heart rate were monitored every 2 minutes during the 20-minute tilt. Statistically significantly larger mean changes in blood pressure and heart rate were observed with the 7.5-mg intravenous dose of terazosin compared with those after oral terazosin or placebo. With respect to intravenous terazosin, the orthostatic changes were maximal on the first day of the 4-day treatment and increased with increasing doses of terazosin. Maximum orthostatic changes in blood pressure after oral administration of terazosin were not significantly different from those observed with placebo. The most common treatment-emergent adverse events during tilt were dizziness and nausea. Dizziness occurred more frequently with intravenous terazosin than with oral terazosin. The results of this study indicate that oral dose titration of terazosin rather than a slower rate of terazosin infusion minimized the postural effects on blood pressure and associated symptoms during head-up tilt.

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Androgen independent PC-3 prostate cancer cells and PC-3 transfectant clones over expressing the apoptosis suppressor bcl-2 were used as an in vitro model. Cells were treated with pharmacologically relevant doses of 1 of the 3 alpha1-adrenoceptor antagonists and the effect on cell viability/cell adhesion on various substrates was examined. Analysis of expression of key attachment factors, such as vascular endothelial growth factor (VEGF) and hypoxia inducible factor-alpha, was performed.

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Although both dopamine and dobutamine are potent positive inotropic agents, multiple studies indicate that dopamine may produce a rise in left ventricular (LV) filling pressure, while dobutamine often has the opposite effect. To ascertain the pharmacological and hemodynamic mechanisms responsible for the elevation in LV filling pressure observed with dopamine, we administered incremental infusions (2, 4, and 6 micrograms/kg/min) of dopamine to 18 open-chest, anesthetized dogs in the presence and absence of rauwolscine (selective alpha 2-adrenoceptor antagonist) (n = 7), terazosin (selective alpha 1-antagonist) (n = 6), and domperidone (selective dopamine2 antagonist) (n = 5), while measuring pressures in the LV and left atrium and changes in dimension in the LV short-axis (with ultrasonic piezo crystals). Dobutamine (2, 4, and 6 micrograms/kg/min) was infused in five additional dogs before and after administration of rauwolscine. The time constant of isovolumic pressure decay, peak lengthening rate (mm/sec), LV end-diastolic pressure, and diastolic pressure-dimension relation were computed. A significant elevation in LV end-diastolic pressure and a parallel increase in LV end-diastolic chamber size was observed with dopamine, while a decline in LV end-diastolic pressure occurred with dobutamine. Yet both dopamine and dobutamine caused a dose-related acceleration of pressure decay and augmentation of peak lengthening rate. Furthermore, heart rate declined during the administration of dopamine but rose with dobutamine. In the presence of either rauwolscine or terazosin, dopamine infusion resulted in a positive chronotropic effect and dose-dependent reductions in LV end-diastolic pressure and end-diastolic chamber dimension; arterial pressure fell only after terazosin administration.(ABSTRACT TRUNCATED AT 250 WORDS)

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Our analysis revealed a cumulative incidence of 1.65% in alpha1-blocker exposed men compared to 2.41% in the unexposed group. These data yielded an unadjusted RR of 0.683 (95% CI 0.532, 0.876) and a risk difference of -0.0076, indicating that 7.6 fewer prostate cancer cases developed per 1,000 exposed men. Thus, exposure to quinazoline alpha1-blockers may have prevented 32 prostate cancer cases among the 4,070 treated men during the study period. Therefore, men exposed to quinazoline alpha1-adrenoceptor antagonists were at 1.46 times lower RR and 31.7% lower attributable risk for prostate cancer than unexposed men. There was no association between alpha1-adrenoceptor antagonist exposure and overall survival.

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TCM (HST) is a potentially effective treatment in improving the QOL, prostate volumes and maximum UFR for patients with BPH, though it is less effective in ameliorating the IPSS score when compared with WM (THH). The non-urethra-related symptoms experienced by BPH patients might be one of the parameters to further achieve the tailored diagnosis and treatment for BPH.

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The aim of this study was to compare the efficiency, and safety of alpha blocker drugs in the treatment of patients with premature ejaculation (PE). Additionally we investigated the quality of life (QoL) in patients with PE who were treated with alpha blocker drugs.

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As an androgen target organ, the prostate gland has the almost unique characteristic of being less sensitive to testosterone than to its metabolite 5 alpha-dihydrotestosterone (5 alpha-DHT). The conversion of testosterone to 5 alpha-DHT is induced by the enzyme 5 alpha-reductase. By blocking the activity of 5 alpha-reductase, the androgenic stimulation of the prostate gland can be significantly reduced. The first drug with such capacity to be introduced on the market was finasteride. Following the administration of this drug to men, serum 5 alpha-DHT levels were reduced by approximately 80%. Large phase III trials have demonstrated the efficacy of finasteride in treating benign prostatic hyperplasia (BPH). While in some patients the drug was poorly effective, other patients showed significant improvements. The mean reduction in size of the prostate gland was 20 to 25% after 6 months of therapy, and this effect was maintained as long as the patient was on the drug, at least up to the end of a 6-year follow-up period. Prostatic symptom scores were improved by a mean of 30%, while urinary flow was only improved by a mean of 1.5 ml/sec (15%). In a recent double-blind, placebo-controlled study comparing the alpha-blocker terazosin with finasteride, significant improvement was demonstrated for the alpha-blocker, while finasteride produced little improvement overall and was not significantly more effective than placebo in treating moderately symptomatic BPH. However, a subanalysis of this study showed that while finasteride was poorly effective in patients with small prostate glands, a significant improvement was apparent in those with glands larger than 40 ml. There is some evidence that early intervention with finasteride can reduce the number of surgical procedures that are required, at least over a 2-year period. Finasteride is very well tolerated. However, since 5 alpha-DHT potentiates erectile capacity, a 3 to 4% incidence of impotence has been reported, as well as a decreased ejaculatory volume. Gynaecomastia has been noted in a few patients (0.4%). In conclusion, finasteride appears to be a very well tolerated drug to treat outflow obstruction in patients with moderately symptomatic BPH caused by large prostate glands.

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The NIH-CPSI scores were significantly improved after the treatment in all the three groups. The clinical efficacy was significantly better in the dexketoprofen trometamol and indometacin groups than in the terazosin group (P < 0.05), but with no significant difference between the former two (P > 0.05). The rates of adverse events were 10.00%, 18.57% and 27.50% in the dexketoprofen trometamol, terazosin and indometacin groups, significantly lower in the former two than in the latter one (P < 0.05).

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hytrin user reviews 2017-12-06

The authors concluded that treatment with terazosin was associated with greater peak urinary flow rate and lower symptom score than treatment with placebo. There was no variability of efficacy of terazosin as a result of prostrate volume, and measurement buy hytrin of prostrate volume was not essential before initiation of therapy.

hytrin tablets uses 2016-03-28

Several trials have evaluated the effects of nifedipine and tamsulosin on ureteral stone passage rates and mean time to stone passage in stones no larger than 15 mm. In 28 day trials, the rates of ureteral stone passage were 35-70% in the control groups compared with 77.1-80% in patients treated with nifedipine and 79.3-100% in patients treated with tamsulosin. Average number of days to stone passage in the control groups was 4.6-20, and the time to stone passage was only 5-9.3 days in patients receiving nifedipine and 2.7-7.9 days in those receiving tamsulosin. The stone passage rates and time to stone passage appeared to be similar in one trial that compared tamsulosin with terazosin and doxazosin. Limited data suggest that these agents may have buy hytrin a role as adjuncts to shock wave lithotripsy. Adverse drug reactions were uncommon.

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Central alpha(1)- and alpha(2)-adrenoceptors in a number buy hytrin of different brain regions are known to have opposing actions on gross behavioral activity, with the former stimulating and the latter inhibiting activity. Therefore, blockade of alpha(1)-receptors may induce inactivity by leading to unopposed alpha(2) activity.

hytrin drug classification 2017-12-22

Catheterization remains the standard management of acute urinary retention (AUR), followed by a trial without catheter (TWOC) or prostatectomy in men who do not void spontaneously. If AUR is caused by increased sympathetic activity at the level of the prostatic smooth muscles, alpha-blockers (alpha-1 adrenoreceptor antagonists) should increase the likelihood of a successful trial without catheter (TWOC) following AUR. Alpha-blockers effectively reduce the symptoms associated with benign prostatic buy hytrin hyperplasia (BPH) and improve the urodynamic parameters of obstruction. They may diminish the incidence of AUR and the need for prostatectomy in symptomatic men. The adventage of tamsulosin and slow-release alfuzosin over doxazosin and terazosin in the management of AUR is that a therapeutic dose can be administered at the onset of AUR, thereby reducing the time for attempting catheter removal.

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We determine the effect of placebo, finasteride, terazosin and a combination of drugs on bother due to symptoms, quality of life and patient perception of improvement buy hytrin , and identify baseline clinical factors that predict clinical response to medical therapy.

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Eleven (44%) out of 25 patients using doxazosin and 10 (40%) out of 25 patients using terazosin showed improvement in both IPSS and Qmax at the end of the 3rd month and continued using the drug. After 3 months of treatment, increase in Qmax (p < 0.001) and decrease in IPSS (p < 0. buy hytrin 01) was significant for both doxazosin and terazosin. Nineteen patients, who did not show improvement in any of the parameters, switched the drug. Of the patients who switched the drug, 2 (4%) showed improvement both in IPSS and in Qmax, while 2 (4%) showed improvement only in IPSS but not in Qmax. The remaining 15 (30%) patients did not show improvement in any of the parameters.

hytrin drug information 2017-02-08

The following databases were searched from inception to 6 August 2013 for published and unpublished research evidence: MEDLINE; EMBASE; Cumulative Index to Nursing and Allied Health Literature; The buy hytrin Cochrane Library including the Cochrane Systematic Reviews Database, Cochrane Controlled Trials Register, Database of Abstracts of Reviews of Effects and the Health Technology Assessment database; ISI Web of Science, including Science Citation Index, and the Conference Proceedings Citation Index-Science. The US Food and Drug Administration website and the European Medicines Agency (EMA) website were also searched.

hytrin dosing 2015-07-12

Most men who live to middle age and beyond will ultimately develop lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH), and many will also experience sexual dysfunction. Clinical studies indicate that most patients will buy hytrin experience improvement in BPH-related LUTS with alpha-adrenergic blockade or 5alpha-reductase inhibition. Recent studies suggest that alpha-blockers and 5alpha-reductase inhibitors may help to slow the progression of LUTS; 5alpha-reductase inhibitors reduce the need for surgery and complications, such as acute urinary retention. Third-generation alpha-blockers (alfuzosin, tamsulosin) are infrequently associated with cardiovascular side effects, in contrast to their predecessors (doxazosin, terazosin, prazosin). This may provide an advantage for consideration as firstline therapy. alpha-Blocker therapy may also improve sexual functioning, with the exception of ejaculation disorders, predominantly associated with subtypeselective alpha-blockers. By contrast, 5alpha-reductase inhibition is not recommended for men without demonstrable prostatic enlargement, may be associated with a long delay between treatment initiation and LUTS improvement, and is clearly associated with sexual side effects, including decreased libido, ejaculatory dysfunction, and erectile dysfunction. When choosing appropriate pharmacotherapy, the clinician should consider not only the expeditious relief of the presenting symptoms but also the patient's quality of life, including sexual function and potential long-term outcomes, such as acute urinary retention and the need for surgical intervention.

hytrin dosage forms 2015-08-06

Mechanistic, translational and pharmacological studies led to the identification and discovery of the preferred localization, binding characteristics, structure buy hytrin and functional properties of α1-adrenoceptor (α1-AR) subtypes in the bladder neck, bladder and prostate gland. The evidence gathered on α1-ARs, provided a molecular platform for the development of subtype-selective antagonists, resulting in more effective approaches targeting those receptors for the treatment of outlet bladder obstruction and benign prostate hyperplasia.

hytrin terazosin dosage 2015-05-05

The dynamic component of infravesical obstruction in men with symptomatic benign prostatic hyperplasia (BPH) is determined by alpha 1-adrenoceptor-mediated contractions of the prostatic capsule, prostate adenoma, and bladder neck. Since alpha 1-adrenoceptors are sparse in the bladder, medical therapy aimed at blocking the alpha receptor will relieve bladder outlet obstruction without inhibiting bladder function. Numerous clinical studies have evaluated the use of various alpha blockers for the treatment of BPH. Although the majority of these trials involved limited numbers of patients treated for only short periods, their results have consistently shown that alpha blockers improve urinary flow rates. Adverse reactions appear to be more frequent and more serious with the buy hytrin use of nonselective alpha blockers than with selective alpha 1 blockers, such as terazosin or prazosin. Terazosin offers the additional advantage of once-daily dosing. The common association of hypertension, hyperlipidemia, and symptomatic BPH in the aging male population may provide further impetus for initiating treatment with alpha blockers because alpha blockers are effective antihypertensive agents and may favorably alter lipid profiles.

hytrin 1mg generic 2015-09-06

Patients' perceptions of the usefulness buy hytrin of information.

hytrin tablets 2016-02-22

Structural similarities were identified among AT(1) and α(1)-antagonists, initiating a buy hytrin speculation that α(1)-antagonists could possibly block the AT(1) receptor and vice-versa.

hytrin tab 2016-02-19

Randomized, double-blind, multicenter ( Benicar 120 Mg eight government and private facilities), placebo-controlled study.

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To present a pilot study to determine whether the alpha1-adrenoceptor antagonist terazosin can induce apoptosis in transitional cell carcinoma (TCC) of the bladder, similar to the effect seen with prostate cancer. The alpha1-adrenoceptor antagonist terazosin has recently been shown to induce Lanoxin Tablets apoptosis in prostate cancer cells both in vitro and in vivo and to reduce prostatic tissue vascularity by potentially affecting endothelial cell adhesion.

hytrin generic name 2016-03-04

1. The alpha1-adrenoceptor population mediating contractile responses to noradrenaline (NA) in smooth muscles of the bladder neck from rabbit (RBN) has been characterized by use of quantitative receptor pharmacology. 2. Experiments with several 'key' alpha1-adrenoceptor antagonists of varying subtype selectivities (RS-17053, BMY 7378, indoramin, 5-methylurapidil, prazosin, REC 15/2739, SNAP 5089, terazosin, WB 4101, tamsulosin, (+)-cyclazosin and RS-100329) were conducted. Schild regression analyses yielded affinity (mean pKb) estimates of 7.1, 6.2, 8.6, 8.6, 8.4, 9.3, 7.0, 7.4, 8.9, 10.0, 7.1 and 9.3, respectively, although deviations from unit Schild regression slope question the robustness of data for RS-17053 and SNAP 5089. 3. The nature of antagonism by these agents and the Amoxil Elixir Dosage profile of affinity determinations generated together suggest that a single alpha1-adrenoceptor subtype mediates contractile responses of RBN to NA. Additional studies with phenylephrine indicated also an agonist-independence of this profile. Pharmacologically, this profile was reminiscent of that described as 'alpha1L'-adrenoceptor, which has been shown to mediate contractions of several tissues including lower urinary tract (LUT) tissues of man. Furthermore, a similarity was noticed between the 'alpha1L'-adrenoceptor described here in RBN and the rabbit and human cloned alpha1a-adrenoceptor (based on data from both whole cell radioligand binding at 37 degrees C and [3H]-inositol phosphates accumulation assays), characterizations of which have been published elsewhere. 4. In conclusion, the RBN appears to provide a predictive pharmacological assay for the study of NA-induced smooth muscle contraction in LUT tissues of man.

hytrin dosage prostate 2016-12-03

Fifteen Wistar rats were treated with terazosin (1.2 mg/kg body weight, given orally every second day) for 120 days. Another 15 control animals received the same amount of distilled water. The expression of caspase-3 was assessed immunohistochemically in formalin Adalat 30 Mg -fixed, paraffin-embedded tissue sections.

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Of the 24 patients 12 (50%) showed improvement in symptoms, peak flow and post-void residual (p <0.01) with alpha-blocker therapy only. Of the 12 patients who had a poor response to alpha-blockers 6 underwent bladder neck incision subsequently and 6 remained on clean intermittent self-catheterization. All 8 patients treated with bladder neck incision, including 2 who had a good response but discontinued alpha-blocker therapy, had sustained improvement in post-void residual and peak flow (p <0.01) after a mean followup of 3.8 +/- 2.4 years. Grade Triphala Tablets Benefits 1 stress incontinence in 2 adult resectoscope cases responded to conservative treatment. None of the pediatric resectoscope cases had stress incontinence.

hytrin medication uses 2017-12-15

In this randomized prospective study 52 patients with symptomatic BPH received terazosin and 51 underwent high energy transurethral microwave therapy with topical anesthesia. Patient evaluation included determination of International Prostate Symptom Score (I-PSS), peak flow rate and quality of life score before transurethral microwave therapy or terazosin and periodically up to 6 Zovirax Dosage Dose months thereafter.

hytrin 10 mg 2015-10-26

We conclude that tamsulosin displays selectivity for alpha 1a and alpha 1d ARs. This Flomax Medication Alternatives selectivity may contribute to the tamsulosin efficacy reported in several recent clinical studies in patients with BPH.

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Induction of apoptosis in prostatic epithelial cells by doxazosin, terazosin and prazosin has been well documented. However, the biochemical pathways of doxazosin action is still unclear. Aforementioned drugs should lead to decrease of Benicar Maximum Dose prostate volume, although this effect was never observed in patients suffering from BPH after treatment with α1-antagonists. Probably, it is connected with cancer stem cells' resistance on chemotherapeutic agents. The aim of this study was to compare incidence of apoptosis induced by doxazosin in progenitor and differentiated cells isolated from human prostate epithelium.