Tetrahydrozoline Hydrochloride

**Semantic type:** Pharmacologic Substance

**Definition:** The hydrochloride salt form of tetrahydrozoline, an imidazole derivative with sympathomimetic property. Applied locally to the eye or nose, tetrahydrozoline binds to and activates alpha-adrenergic receptors, resulting in vasoconstriction and decreased nasal and ophthalmic congestion.

**Synonyms:** - 1H-Imidazole, 4,5-dihydro-2-(1,2,3,4-tetrahydro-1-naphthalenyl)-, Monohydrochloride - 2-(1,2,3,4-Tetrahydro-1-naphthyl)-2-imidazoline Hydrochloride - TETRAHYDROZOLINE HYDROCHLORIDE - Tyzanol Hydrochloride - Tyzine - Vasopos - Visine