Isoptin

Verapamil

Developed to support cardiovascular health.

Active ingredient
Verapamil
Supply
Pharmacy
Route
Oral use
Form
Film-coated tablet
Strengths
40 · 120 · 240mg

Isoptin details

Alternative names
Cordilox
Therapeutic class
Calcium channel blocker
Pharmacological class
Calcium channel blocker
Contraindications
hypotension; cardiogenic shock; second or third-degree heart block
Precautions and warnings
monitor blood pressure
Minor side effects
constipation; dizziness; headache
Moderate side effects
bradycardia; peripheral oedema
Serious side effects
heart failure, requires immediate medical attention
Dosage forms
Film-coated tablet
Administration route
Oral use
Patient summary
developed to support cardiovascular health.
Supply category
Pharmacist only, dispensed without a prescription
Manufacturer
Abbott
Onset Time
1–2 hours
Duration
6–8 hours
Storage instructions
Store below 25°C.
Drug interactions
beta-blockers; grapefruit juice
Age restrictions
Use with caution in elderly patients.
Pregnancy and breastfeeding
Pregnancy: Use only if necessary. Breastfeeding: Use with caution.
Mechanism of action

Verapamil inhibits the influx of calcium ions into cardiac and vascular smooth muscle cells, resulting in coronary and peripheral vasodilation and decreased heart rate.

Where this medicine is registered

  • Singapore
  • Hong Kong
  • Thailand
  • Malaysia
  • Philippines
  • Indonesia
  • Taiwan
  • South Korea
  • Japan
  • Australia
  • New Zealand
  • UAE
  • South Africa

About Isoptin

Isoptin is a trusted brand of verapamil used to assist with the management of hypertension, angina pectoris and arrhythmia. The same active ingredient is also sold under various labels including Cordilox. Abbott produces this medication as a tablet in strengths of 40, 120 and 240mg, providing flexible options for long-term cardiovascular support.

Buying Isoptin online

Isoptin is registered across 14 markets including Thailand, Malaysia and the Philippines, with further availability in Indonesia, Taiwan and South Korea. Generic verapamil, often produced in India, offers a significantly more cost effective alternative to the original brand. This makes it an accessible option for expats or those living in areas where local stock is limited. Ordering online provides a straightforward way to maintain a consistent supply of medication across the region.