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Carvi Beta Carvi Beta Systematic (IUPAC) name (±)-[3-(9H-carbazol-4-yloxy)-2-hydroxypropyl][2-(2-methoxyphenoxy)ethyl]amine Chemical data Formula C24H26N2O4 Pharmacokinetic data Bioavailability 25–35% Protein binding 98% Metabolism Half-life Excretion Liver (CYP2D6, CYP2C9) 7–10 hours Urine (16%), Feces (60%) Therapeutic considerations Legal status Routes ℞ Prescription only Oral Carvi Beta is a non-selective beta blocker/alpha-1 blocker indicated in the treatment of mild to moderate congestive heart failure (CHF). Pharmacology Carvi Beta is both a beta blocker (β1, β2) and alpha blocker (α1): Norepinephrine stimulates the nerves that control the muscles of the heart by binding to the β1- and β2-adrenergic receptors. Carvi Beta blocks the binding to those receptors, which both slows the heart rhythm and reduces the force of the heart's pumping. This lowers blood pressure and reduces heart failure. Norepinephrine also binds to the α1-adrenergic receptors on blood vessels, causing them to constrict and raise blood pressure. Carvi Beta blocks this binding to the α1-adrenergic receptors too which also lowers blood pressure. Relative to other beta blockers, Carvi Beta has minimal inverse agonist activity. This suggests that Carvi Beta has a reduced negative chronotropic and inotropic effect compared to other beta blockers, which may decrease its potential to worsen symptoms of heart failure. However, to date this theoretical benefit has not been established in clinical trials, and the current version of the ACC/AHA guidelines on congestive heart failure management does not give preference to Carvi Beta over other beta-blockers. Side effects The most common side effects include dizziness, fatigue, hypotension, diarrhea, asthenia, bradycardia, and weight gain. A case report of a patient with panic disorder associated sleep disturbances and nightmares with the improper usage of Carvi Beta.[6] Clinical use Carvi Beta is indicated in the management of congestive heart failure (CHF), as an adjunct to conventional treatments (ACE inhibitors and diuretics). The use of Carvi Beta has been shown to provide additional morbidity and mortality benefits in CHFCarvi Beta is available at the following doses 3.125 mg (smallest), followed by 6.25 mg, 12.5 mg, and 25 mg white tablets.