Propranolol (-lol ending means it’s a beta blocker).
This is an injectable beta blocker used to treat atrial tachycardia and ventricular tachycardia.
You would inject propranolol intravenously if someones hard is beating too fast since beta blockers slow the heart rate down. We mentioned beta blockers (taken p.o.) previously when we discussed sympathetic blocking agents since beta blockers could also be used as antihypertensives since they block the release of renin.
Whats the difference of tachycardia and fibrillation? Tachycardia is a HR of >100. It beats fast and there is good output. Fibrillation doesn’t have good a good pattern so there’s no good output. There’s also a flutter syndrome that could happen which is a faster heart rate than tachycardia. Fibrillation is the fastest where it’s beating so fast that there is hardly any output.