All::Cardiovascular System::Pharmacology::Alpha-blockers

Intro

What is the method of action of Alpha-blockers?

  • Most alpha blockers are highly selective for the α1-adrenoceptor
  • α1 causes smooth muscle contraction (mainly in bladder and blood vessels)

What is the main clinical use of Alpha-blockers?

  • symptoms in benign prostatic hyperplasia
  • resistant hypertension, when other medicines are insufficient

What are the main adverse effects of Alpha-blockers?

  • postural hypotension
  • dizziness
  • syncope