... . It's a α-receptor agonists, which can contract nasal vas and reduce the exudation of vas, reduce swelling ... the treatment of colds or allergic rhinitis, inflammatory nasal congestion, acute and chronic rhinitis[Usage and Dosage]: ... accordance with the requirements of customers.[Preparation]: Naphazoline Hydrochloride Nasal Droops.[Distinguish]: Infrared light absorption patterns consistent with ...