Calan, containing verapamil, can cause various side effects. Common ones include headaches, dizziness, and constipation. Less frequent but potentially serious effects involve slowed heartbeat (bradycardia), low blood pressure (hypotension), and heart block. Always report any unusual symptoms to your doctor.
Medication Interactions: Verapamil interacts significantly with several drugs. Grapefruit juice increases verapamil levels, potentially leading to increased side effects. Avoid consuming grapefruit juice while taking Calan.
Beta-blockers: Combining Calan with beta-blockers can severely slow your heart rate. Your doctor should carefully monitor you if you’re on both medications.
Digoxin: Verapamil can increase digoxin levels, potentially causing toxicity. Close monitoring of your digoxin levels is required if you use both.
Statins: Some statins may have increased side effect risk when combined with Calan. Consult your physician for appropriate monitoring.
Certain Antidepressants: Interactions are possible with certain antidepressants, requiring careful monitoring and dose adjustment.
Always inform your doctor or pharmacist about all medications, supplements, and herbal remedies you’re taking before starting Calan. This allows for appropriate adjustments and monitoring to minimize potential risks.


