Chemistry and pharmacokinetics

Nadolol is nonionic & aquaphobic, sustaining moo lipid solubility. Its half-life is 14-24 hours.

Mechanism of action

Nadolol non-selectively jams beta-One adrenergic receptors mainly in the heart, inhibiting the results of the catecholamines epinephrine and norepinephrine and decreasing heart rate and blood pressure. It likewise hinders beta-Two sympathomimetic receptors located in bronchiole smooth muscle, causing vasoconstriction. By binding beta-Two receptors in the juxtaglomerular apparatus, nadolol inhibits a production of renin, thereby inhibiting angiotensin II and aldosterone production. Nadolol so inhibits a vasoconstriction & water retention due to angiotensin II and aldosterone, severally.

A drug impairs AV node conduction and lessens sinus rate.

Nadolol might likewise increase plasma triglycerides and decrease HDL-cholesterol levels.

Indications

Nadolol is indicated for coarse of action of moderate hypertension and chest pain. Inside patients using severe hypertension, nadolol can too address reflex tachycardia due to treatment sustaining vasodilative.

Contraindications

Patients whose pulse rate is largely mediated per sympathetic nervous system (e.g. patients by using congestive heart failure or myocardial infarct) should avoid corgard when it inhibits sympathetic work. Nadolol is too contraindicated within patients sustaining bradycardia (slow heart rate) beinduce of its vasodilatory results & tendency to cause bradycardia.

Because of its beta-Two activity, corgard induces pulmonic vasoconstriction & should exist as avoided within asthma patients in preference of the beta-One blocker like propanolol.

When corgard, such as more beta-Two blockers, inhibits a release of insulin in response to hypoglycemia, it slows patients' recovery from intense hypoglycaemic episodes & should become avoided around a select few patients using diabetes mellitus. Within patients sustaining insulin-dependent diabetes, a selective beta-One blocker is favorite on top non-selective blockers.

Side effects
Bradycardia Fatigue Bronchospasms