Tags: Drug.
Olopatadine hydrochloride is an antihistamine (as well as anticholinergic and mast cell stabilizer) sold as a prescription eye drop (0.2% solution Pataday (or Patanol S in some countries) manufactured by Alcon). It is used to treat itching associated with allergic conjunctivitis (eye allergies). Olopatadine hydrochloride 0.1% is sold as Patanol (or Opatanol in some countries). A decongestant nasal spray formulation is sold as Patanase which was approved by the FDA on April 15 2008.
