Pindolol, sold under the brand name Visken among others, is a nonselective beta-blocker used for the treatment of hypertension (high blood pressure). It works by blocking beta-adrenergic receptors in the heart and blood vessels, reducing heart rate and cardiac output, which lowers blood pressure. Pindolol has intrinsic sympathomimetic activity (ISA), meaning it partially stimulates beta receptors while blocking stronger adrenergic effects. This makes it a preferred option for patients who require a beta-blocker with less impact on resting heart rate and cardiac function.
Parent: Pindolol
Impurities in Pindolol can arise from chemical synthesis, degradation, or storage conditions. Regulatory agencies such as the FDA, ICH, and EMA set strict impurity limits to ensure drug safety and efficacy.
Process-Related Impurities
Degradation Impurities
Elemental Impurities
Analytical Techniques for Impurity Detection
Pindolol starts lowering blood pressure within 1–2 hours after oral administration. However, its full antihypertensive effects may take several days to weeks to become noticeable.
Pindolol can be taken with or without food, but taking it with food may help reduce potential stomach discomfort. It is recommended to take it at the same time each day for consistent effectiveness.
Pindolol is contraindicated in patients with:
Pindolol has a half-life of 3–4 hours, but its effects last for approximately 12–24 hours, allowing for twice-daily dosing in most cases.
