Assertion: beta blocker | /r/HasProperty | beta-blockers
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: Beta blockers (beta-blockers, β-blockers, etc.) are a class of medications that are predominantly used to manage abnormal heart rhythms, and to protect the heart from a second heart attack (myocardial infarction) after a first heart attack (secondary prevention).
text: They are also sometimes known as beta antagonists, beta-adrenergic blocking agents, or beta-adrenergic antagonists.