Assertion: alpha blocker | /r/HasProperty | drug
Facets:
Source sentences:
text: Alpha blocker: A drug that blocks receptors in arteries and smooth muscle.
text: Alpha-blockers are medicines that are mainly used to treat high blood pressure (hypertension) and problems with passing urine in men who have enlargement of the prostate gland.
text: However, they are very rarely used to treat these conditions now because there are other medicines that are thought to work better.