Vasofex XR Prazosin Hydrochloride Procainamide Hydrochloride
ModeratePrazosin (sold in Bangladesh under the brand name Alphapress XR) has been used alongside procainamide in clinical experience so far without any harmful interaction being reported. The leaflet's list of other medicines that have been used safely with it covers digoxin and digitalis, several diabetes medicines, sedatives such as diazepam, and the heart rhythm drugs propranolol and quinidine, along with aspirin, indomethacin, phenylbutazone and a few others.
These medicines are often taken together with some care. Your doctor may change a dose, space them apart or check on you more often. Make sure your doctor and pharmacist know you take both.