What would happen if you took propranolol (on its own) during an acute psvt episode? what would be considered an appropriate dosage for such an event?

PSVT: It's not recommended to self treat and it's best to have your personal physician or cardiologist answer this question. If maneuvers like making yourself gag or bearing down like you're having a bowel movement doesn't break the SVT, common stat dose of propranolol would be 80 mgs. I feel if the tachycardia persists, it's best to go to the hospital emergency room for further monitoring and treatmen