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| ISOPTIN FULL DESCRIPTION |
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GENERIC NAME: VERAPAMIL - ORAL (ver-APP-uh-mill)
BRAND NAME(S): Calan, Isoptin
Most Common Medical Uses
This drug is a calcium channel blocker. Calcium is involved in blood vessel contraction and in controlling the electrical impulses within the heart. By blocking calcium, verapamil relaxes and widens blood vessels and can normalize heartbeats. Verapamil is used to treat chest pain (angina), high blood pressure or irregular heartbeats. Ask your doctor or pharmacist about possible problems related to use of short-acting calcium channel blockers.
How to Take This Medication
This medication should be swallowed whole with a full glass of water unless your doctor directs you otherwise. This medication must be taken as directed to prevent chest pain. It is not effective if taken only when chest pain occurs. Do not stop taking this medication suddenly without your doctor's permission. Chest pain can occur if the medication is stopped too fast. Your dose may need to be gradually decreased.
Possible Side Effects
This drug may cause dizziness and lightheadedness especially during the first few days. Avoid activities requiring alertness. When you sit or lie down for a while, get up slowly to allow your body to adjust and minimize dizziness. You may also experience weakness, fatigue, nausea, muscle cramps, headache, flushing or constipation. These effects should disappear as your body adjusts to the medication. Inform your doctor if they become bothersome. Notify your doctor immediately if you develop: breathing difficulties, swelling of the hands or feet, irregular heartbeat, fever, stomach/abdominal pain, yellowing eyes and skin, dark urine. If you notice other effects not listed above, contact your doctor or pharmacist.
Precautions
Before using this drug, tell your doctor your medical history, including: allergies (especially drug allergies), heart problems (e.g., heart rhythm disturbances, heart failure), liver or kidney disease, very low blood pressure, muscular dystrophy, brain tumors (cancer). Before heart surgery, tell your doctor you use this medicine. Verapamil prolongs and intensifies the effects of alcohol in your system. Avoid (or very carefully limit) alcoholic beverages while using this medication. Caution is advised when this drug is used in the elderly. This medication should be used only when clearly needed during pregnancy. Discuss the risks and benefits with your doctor. This drug is excreted into breast milk and a decision should be made whether to stop the drug or avoid breast-feeding. Consult your doctor before breast-feeding.
Drug Interactions
Tell your doctor of all prescription and nonprescription drugs you may use, especially of: beta-blockers, intravenous (IV) calcium, cimetidine, cyclosporine, digoxin. Avoid any drugs that increase your heart-rate (the decongestants phenylephrine, pseudoephedrine and phenylpropanolamine are examples). These drugs are commonly found in over-the-counter cough-and-cold products. Do not eat grapefruit or drink grapefruit juice unless your doctor instructs you otherwise. Do not start or stop any medicine without doctor or pharmacist approval.
Missed Dose
If you miss a dose, take as soon as remembered; do not take if it is almost time for the next dose, instead, skip the missed dose and resume your usual dosing schedule. Do not "double-up" the dose to catch up.
Storage
Store at room temperature away from sunlight and moisture.
Notes
Laboratory tests (e.g., liver function tests) should be performed periodically to monitor for side effects. Do not share this medication with others.
Disclaimer
This Information may change. Therefore, read the product information leaflet provided with the product before using it !!
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