<unk>  is an α1 blocker medication primarily used to treat high blood pressure, symptoms of an enlarged prostate, and nightmares related to post-traumatic stress disorder (PTSD). It is a less preferred treatment of high blood pressure. Other uses may include heart failure and Raynaud syndrome. It is taken by mouth. Common side effects include dizziness, sleepiness, nausea, and heart palpitations. Serious side effects may include low blood pressure with standing and depression.<unk>  is a non-selective inverse agonist of the α1-adrenergic receptors. It works to decrease blood pressure by dilating blood vessels and helps with an enlarged prostate by relaxing the outflow of the bladder. How it works in PTSD is not entirely clear.<unk>  was patented in 1965 and came into medical use in 1974. It is available as a generic medication. In 2019, it was the 170th most commonly prescribed medication in the United States, with more than 3million prescriptions.
Prazosin
Phenylephrine
Acebutolol
Terazosin
Doxazosin
Tamsulosin
Silodosin
Hydrastine