Phenylephrine Hcl

Description

Phenylephrine HCl is a sympathomimetic drug commonly used as a decongestant to relieve nasal and sinus congestion caused by colds, allergies, and other upper respiratory conditions. It is a selective alpha-1 adrenergic agonist, meaning it works by stimulating alpha-1 adrenergic receptors in the blood vessels, causing them to constrict (vasoconstriction). This results in a reduction in blood flow to the nasal passages, leading to decreased swelling and congestion in the nasal mucosa.

Phenylephrine is widely available in various oral, nasal spray, and topical formulations and is often combined with other drugs in products targeting common cold symptoms, such as antihistamines, pain relievers, or cough suppressants.