Source:http://linkedlifedata.com/resource/umls/id/C0357797
NCI: The hydrochloride salt form of oxymetazoline, an imidazole derivative with a direct acting sympathomimetic property. Oxymetazoline binds to and activates alpha-2 adrenergic receptors. Upon nasal or ocular administration, oxymetazoline constricts the arterioles in the nose and eye, resulting in decreased nasal and conjunctival congestion, respectively.