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Antihypertensive Drugs: Vasodilators

Vasodilators, primarily affecting the smooth muscles within arterial and venous walls, are commonly used for hypertension treatment. Medications such as minoxidil and hydralazine primarily target arteries and arterioles, while sodium nitroprusside acts on arterioles and venules. Minoxidil, functioning as a prodrug, is metabolized by hepatic sulfotransferase into its active form, minoxidil sulfate, after oral administration. This metabolite binds to the sulfonylurea receptor (SUR) component of...
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Related Experiment Video

Updated: Jun 12, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
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Published on: March 9, 2015

Finasteride.

Uzair B Chaudhary1, Jeffrey S Turner

  • 1UCSF/Fresno Medical Education Program, 2823 Fresno Street, Internal Medicine, Suite A, Fresno, CA 93721, USA. uchaudhary@fresno.ucsf.edu

Expert Opinion on Drug Metabolism & Toxicology
|June 12, 2010
PubMed
Summary
This summary is machine-generated.

Finasteride, a 5-alpha-reductase inhibitor, was the first agent to reduce prostate cancer prevalence. However, concerns about high-grade cancer incidence limit its clinical use for chemoprevention.

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Last Updated: Jun 12, 2026

A New Technique for Quantitative Analysis of Hair Loss in Mice Using Grayscale Analysis
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Published on: March 9, 2015

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03:22

Mechanical and Controlled PRP Injections in Patients Affected by Androgenetic Alopecia

Published on: January 27, 2018

Area of Science:

  • Oncology
  • Urology
  • Preventive Medicine

Background:

  • Prostate cancer is a prevalent malignancy in males, with chemoprevention offering a promising strategy.
  • The long latency and hormonal responsiveness of prostate cancer make it a target for preventive therapies.

Purpose of the Study:

  • To review the development and efficacy of finasteride as a prostate cancer chemopreventive agent.
  • To discuss the Prostate Cancer Prevention Trial (PCPT) findings and controversies surrounding finasteride use.

Main Methods:

  • Review of the Prostate Cancer Prevention Trial (PCPT) data.
  • Analysis of finasteride's role in prostate cancer chemoprevention.
  • Discussion of alternative chemopreventive agents and ongoing research.

Main Results:

  • Finasteride demonstrated a reduction in overall prostate cancer prevalence.
  • A higher incidence of high-grade prostate cancer was observed in the finasteride arm.
  • Finasteride is generally well-tolerated but its use is limited by safety concerns.

Conclusions:

  • Finasteride, a 5-alpha-reductase inhibitor, offers a benefit in reducing prostate cancer prevalence.
  • Concerns regarding high-grade cancer incidence have hindered finasteride's widespread adoption in clinical practice.
  • Finasteride is not approved as a chemopreventive agent due to risk-benefit considerations.