Isoptin Retard (Verapamil Hydrochloride)

Verapamil hydrochloride blocks L‑type calcium channels in cardiac and vascular smooth muscle. This reduces calcium entry into cells, leading to decreased myocardial contractility, slowed AV‑node conduction, and vasodilation, which together lower blood pressure and stabilize heart rhythm.

The appropriate dose of Isoptin Retard is determined by the prescribing clinician based on the individual’s medical condition, response to therapy, and other factors. Patients should follow the dosage instructions provided by their healthcare professional.

Safety data for verapamil hydrochloride in pregnancy and lactation are limited. The drug should only be used if the potential benefit justifies any possible risk to the fetus or infant, and this decision must be made by a qualified healthcare provider.

To place an order, 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 necessary import documentation.

Isoptin Retard belongs to the calcium‑channel‑blocker class, which primarily slows AV‑node conduction. Compared with class III agents such as amiodarone, verapamil has a shorter half‑life and fewer systemic toxicities, but it may be less effective for ventricular arrhythmias. Choice of therapy depends on the specific arrhythmia and patient profile.

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

Isoptin Retard is taken orally, usually with a full glass of water. The tablet is designed for extended‑release delivery, so it should be swallowed whole and not crushed, chewed, or split, to preserve its controlled‑release properties.

Serious risks include severe hypotension, marked bradycardia, atrioventricular block, and worsening heart failure. Patients should be monitored for signs of these events, especially during dose initiation or when combined with other cardiac‑active medications.

Isoptin Retard is contraindicated in patients with known hypersensitivity to verapamil or other calcium‑channel blockers, those with severe hypotension, advanced heart block without a pacemaker, and certain forms of cardiogenic shock. Clinicians must evaluate each patient’s medical history before prescribing.