Isoptin Retard (Verapamil Hydrochloride)

Verapamil blocks L‑type calcium channels in the heart and blood‑vessel walls. This reduces calcium entry into cells, leading to decreased myocardial contractility, slower heart rate, and dilation of arterial smooth muscle, which together lower blood pressure and lessen the heart's oxygen demand.

The dose of Isoptin Retard is individualized by the prescribing clinician based on the patient’s condition, response, and tolerance. Healthcare professionals determine the appropriate strength, frequency, and titration schedule, and patients should follow the prescribed regimen exactly.

Safety data for verapamil during pregnancy and lactation are limited. It should only be used if the potential benefit justifies any possible risk to the fetus or infant. Women who are pregnant, planning pregnancy, or breastfeeding should discuss alternatives and risks with their healthcare provider.

To request Isoptin Retard, submit an enquiry on the product page at gnhindia.com, specifying the required quantity. GNH India works with hospitals, pharmacies, and procurement teams worldwide, verifies trade or institutional credentials, and then provides pricing, availability, shipping details and any required import documentation.

Isoptin Retard (verapamil) is a non‑dihydropyridine calcium‑channel blocker, distinguished by its pronounced effects on cardiac conduction and contractility. In contrast, dihydropyridine agents such as amlodipine primarily cause vasodilation with less impact on heart rate, making verapamil preferable for certain arrhythmias but requiring closer cardiac monitoring.

Store Isoptin Retard at ambient temperature, preferably below 25 °C. Keep the tablets in the original container, protect them from moisture, heat and direct sunlight, and ensure the package is tightly closed to maintain product stability.

Isoptin Retard is taken orally, usually with a glass of water. The tablet should be swallowed whole and not crushed or chewed. Dosing times and frequency are set by the prescriber, and the medication may be taken with or without food depending on individual tolerance.

Serious adverse events include marked bradycardia, atrioventricular block, severe hypotension, and rare cases of hepatic dysfunction or allergic reactions. Patients should seek immediate medical attention if they experience fainting, unusually slow heartbeat, chest discomfort, yellowing of the skin or eyes, or signs of an allergic reaction.

Isoptin Retard is contraindicated in patients with known hypersensitivity to verapamil or other calcium‑channel blockers, those with severe sinus‑node dysfunction, second‑ or third‑degree AV block without a pacemaker, and individuals with cardiogenic shock or severe hypotension. Clinicians must evaluate each patient’s medical history before prescribing.