Naphazoline has 2 different meanings across 1 category:
Noun
vasoconstrictor (trade names Privine and Sudafed) used in nasal sprays to treat symptoms of nasal congestion and in eyedrops to treat eye irritation
2-(1-naphthylmethyl)-2-imidazoline hydrochloride, a sympathomimetic agent used as a vasoconstrictor.