Verapamil
Verapamil is a non-dihydropyridine calcium-channel blocker used for selected cardiovascular conditions. Immediate- and modified-release products have different instructions. Listed uses include hypertension, angina pectoris and arrhythmia.

Isoptin SR
Hypertension, Angina Pectoris, Arrhythmia
120 · 240mg
Isoptin SR is verapamil 120mg and 240mg in a modified-release tablet for hypertension, angina and arrhythmia, blocking calcium influx across the day.
Key points
- Verapamil can slow the heart and worsen selected heart-failure or conduction problems.
- Combining it with other pulse-slowing medicines requires careful review.
- Constipation is common and can become clinically important.
Listings are for comparison only; suitability and supply depend on cardiac assessment, formulation, prescription and pharmacy checks.
Important safety checks
Review slow pulse, conduction block, heart failure, low blood pressure, liver disease, bowel problems and all heart, statin or enzyme-interacting medicines.
When to seek urgent care
Seek urgent help for fainting, chest pain, severe breathlessness, an unusually slow or irregular heartbeat, severe abdominal swelling, facial swelling or breathing difficulty.




