Verapamil is a Calcium Channel Blocking Agent that words by affecting the movement of calcium into the cells of the heart and blood vessels. This relaxes blood vessels and increases the supply of blood and oxygen to the heart while reducing its workload.
Verapamil is used to relieve and control chest pain, and sometimes to treat high blood pressure.
Be sure to tell your doctor of any allergies you have whether it is to medication or food, preservatives, or dyes. Tell your doctor immediately if you are, or become pregnant, or are breastfeeding. Also tell your doctor of any other medications you are taking, including vitamins and supplements, and any medical conditions you may have.
It is very important that you take this medicine exactly as your doctor tells you to. Do not take more or less medicine than directed, and don’t stop taking Verapamil without discussing it with your doctor first.
If you miss a dose of this medicine, take it as soon as you remember, unless it is almost time for your next dose. Do NOT double doses.
Check with your doctor right away if any of the following side effects occur: breathing difficulty, coughing, or wheezing; irregular or fast, pounding heartbeat; skin rash; slow heartbeat; bleeding, tender, or swollen gums; chest pain (about 30 minutes after medicine is taken); fainting; painful; and unusual secretion of milk.
Calan (verapamil HCl) is a calcium ion influx inhibitor (slow-channel blocker or calcium ion antagonist) available for oral administration in film-coated tablets containing 40 mg, 80 mg, or 120 mg of verapamil hydrochloride. Benzeneacetonitrile, ª-[3-[[2-(3,4-dimethoxyphenyl)ethyl] methylamino] propyl]-3,4dimethoxy-ª-(1-methylethyl) hydrochloride. Verapamil HCl is an almost white, crystalline powder, practically free of odor, with a bitter taste. It is soluble in water, chloroform, and methanol. Verapamil HCl is not chemically related to other cardioactive drugs.
Verapamil has the following structural formula:
Brand name: Calan :: Calan SR :: Covera-HS :: Isoptin :: Isoptin SR :: Verelan :: Verelan PM
Similar drugs: Vicoprofen