Calan

verapamil

Brand(s):

• Calaptin

Manufacturer:

• Piramal Enterprise Ltd.

Disease(s):

• Hypertension / Angina

Known as:

• Calan / Covera / Isoptin / Verelan

Verapamil Tablet

What is Verapamil?

Verapamil is a medication classified as a calcium channel blocker. It works by reducing the amount of calcium that enters the heart and muscle cells. This action leads to relaxation of blood vessels, thereby decreasing the workload on the heart. Verapamil is commonly prescribed for the management of angina (chest pain), hypertension (high blood pressure), and to control heart rate in specific conditions. It's important to understand that Verapamil is a prescription medication and should only be used under the guidance of a healthcare professional.

Important Information for Your Doctor

Before starting Verapamil, it's crucial to inform your healthcare provider about your medical history. This includes disclosing any of the following:

• Existing heart or blood vessel disease
• Heart rhythm disorders, such as sick sinus syndrome, ventricular arrhythmias, Wolff-Parkinson-White syndrome, or Lown-Ganong-Levine syndrome
• Liver or kidney disease
• Low blood pressure (hypotension)
• Any known allergies to verapamil, other medications, foods, dyes, or preservatives
• Pregnancy or plans to become pregnant
• Breastfeeding

This information helps your doctor determine if Verapamil is the right medication for you and to adjust the dosage accordingly, minimizing potential risks.

How to Take Verapamil

Verapamil tablets are taken orally with a glass of water. Chewing or crushing the tablets should be avoided. Taking Verapamil with food can help minimize stomach upset. It's vital to follow your doctor's instructions regarding dosage and frequency. Maintain consistent dosing intervals and do not adjust the dosage without consulting your physician. Discontinuing Verapamil abruptly is also not recommended; always follow your doctor's instructions for gradually reducing the dose if necessary.

Children require special considerations when using Verapamil; consult your pediatrician before administering it to a child.

In case of an overdose, immediately contact a poison control center or emergency room.

Remember: This medication is prescribed solely for your use. Do not share it with others.

Missed Dose

If you miss a dose, take it as soon as you remember. However, if it's almost time for your next scheduled dose, skip the missed dose and continue with your regular schedule. Never take a double dose to compensate for a missed one.

Potential Drug Interactions

Certain medications and substances can interact negatively with Verapamil. Do not take Verapamil concurrently with the following:

• Cisapride
• Disopyramide
• Dofetilide
• Grapefruit juice
• Hawthorn
• Pimozide
• Red yeast rice

Verapamil may also interact with the following medications. Inform your doctor about all medications you are taking, including:

• Barbiturates (e.g., phenobarbital)
• Cimetidine
• Cyclosporine
• Lithium
• Local or general anesthetics
• Antiarrhythmics (e.g., amiodarone, digoxin, flecainide, procainamide, quinidine)
• Other medications for high blood pressure or heart problems
• Anticonvulsants (e.g., carbamazepine, phenytoin)
• Rifampin, rifabutin, or rifapentine
• Theophylline or aminophylline

This list is not exhaustive. Always provide your healthcare provider with a complete list of all medications, herbal remedies, over-the-counter drugs, and dietary supplements you use. Also, disclose any alcohol consumption, smoking habits, or illicit drug use, as these can influence drug interactions.

Monitoring Your Health While on Verapamil

Regularly monitor your blood pressure and pulse rate. Your doctor will provide target ranges and guidance on when to contact them. Never stop taking Verapamil suddenly. Your doctor will advise you on how to gradually decrease your dosage if needed.

Drowsiness and dizziness are possible side effects. Avoid driving, operating machinery, or engaging in activities requiring alertness until you understand how Verapamil affects you. Avoid sudden changes in posture (sitting or standing) to minimize the risk of dizziness or fainting, particularly if you are elderly. Alcohol can intensify Verapamil's effects; limit or avoid alcohol consumption while taking this medication.

Possible Side Effects

Report these side effects to your doctor immediately:

• Difficulty breathing
• Dizziness or lightheadedness
• Fainting
• Rapid heartbeat, palpitations, irregular heartbeat, or chest pain
• Skin rash
• Slow heartbeat (bradycardia)
• Swelling of legs or ankles

Side effects that usually don't require immediate medical attention (but should be reported to your doctor if they persist or are bothersome):

• Constipation
• Facial flushing
• Headache
• Nausea and vomiting
• Sexual dysfunction
• Weakness or tiredness

This list may not include all potential side effects.

Storage

Keep Verapamil out of the reach of children. Store at room temperature between 15°C and 25°C (59°F and 77°F). Protect from light and moisture. Keep the container tightly closed.