Calan Sr
Utilized to alleviate hypertension and manage cardiac arrhythmias through systemic vascular resistance reduction.
- Category
- Heart & Blood Pressure
- Active ingredient
- Verapamil
- Supply
- Pharmacy
- Route
- Oral use
- Form
- Modified-release tablet
- Strengths
- 120 · 240mg
Calan Sr details
- Conditions
- Hypertension · Angina Pectoris · Supraventricular Arrhythmias
- Alternative names
- Securon; Cordilox
- Therapeutic class
- Calcium Channel Blocker
- Pharmacological class
- Phenylalkylamine
- Minor side effects
- headache; dizziness; nausea
- Moderate side effects
- peripheral oedema; constipation; flushing
- Dosage forms
- Modified-release tablet
- Administration route
- Oral use
- Supply category
- Pharmacist only, dispensed without a prescription
- Manufacturer
- Mylan
- Onset Time
- 1–2 hours
- Duration
- 12–24 hours
- Storage instructions
- Store below 25°C, away from sunlight and moisture.
- Drug interactions
- alcohol; grapefruit; st. john's wort
- Age restrictions
- Not recommended for children.
Contraindications
hypersensitivity to verapamil; cardiogenic shock; second or third-degree atrioventricular block; sinus node dysfunction
Precautions and warnings
may impair ability to drive or operate machinery; regular heart rhythm monitoring recommended; use with caution in elderly patients
Serious side effects
atrial fibrillation, requires immediate medical attention; bradycardia, requires immediate medical attention
Patient summary
utilized to alleviate hypertension and manage cardiac arrhythmias through systemic vascular resistance reduction.
Mechanism of action
Calan Sr acts as a calcium channel blocker, inhibiting the influx of calcium ions into cardiac and vascular smooth muscle cells. This process relaxes coronary arteries and systemic peripheral vessels, improving blood flow, reducing blood pressure, and slowing the heart rate, thereby decreasing the cardiac workload.
Pregnancy and breastfeeding
Pregnancy: Use only if clearly indicated and after risk assessment. Breastfeeding: Excreted in breast milk; monitor infants closely.
Where this medicine is registered
- Singapore
- Hong Kong
- Thailand
- Malaysia
- Philippines
- Indonesia
- Taiwan
- South Korea
- Japan
- Australia
- New Zealand
- UAE
- South Africa
About Calan Sr
Calan Sr provides verapamil, an active ingredient used to address hypertension, angina pectoris and supraventricular arrhythmias. This medication is also sold under other brand names, including Securon and Cordilox. It is manufactured by Mylan in tablet form, with strengths available at 120mg and 240mg to support reliable, daily cardiovascular care.
Buying Calan Sr online
Calan Sr is registered across 13 markets, including Singapore, Hong Kong and Thailand, with additional availability in Malaysia, the Philippines and Indonesia. While the Mylan original is highly regarded, generic verapamil produced in India represents a significantly more affordable option for long-term maintenance. As one of the most ordered cardiovascular treatments across the region, it is accessible for online purchase and delivery to expats and residents living far from a nearby pharmacy.