route: parenteral (lopressor), oral (toprol, lopressor)
general category: cardiovascular
pharmacologic class: beta adrenergic blocker
common use(s): myocardial infarction, hypertension, angina, heart failure
precautions/warnings/black box: bradycardia (HR < 45 bpm); second or third degree heart block, severe hypotension
high alert drug: ***
dosage:
IV (myocardial infarction): 5 mg IV inj x 3 doses at 2 min intervals, then 50 mg PO Q 6 H
maintenance: 100 mg PO BID