Study to Assess the PK of Ketorolac Tromethamine Intranasal and to Assess the Effects of a Oxymetazoline Hydrochloride on the PK of Ketorolac Tromethamine

30 mg of intranasal ketorolac tromethamine (one 100 µL spray into each nostril of a 15%, pH 7.2 solution)

Single intranasal dose of oxymetazoline hydrochloride (Afrazine®) (3 sprays of a 0.05% solution into each nostril) followed 30 minutes later by 30 mg of intranasal ketorolac tromethamine (one 100 µL spray into each nostril of a 15%, pH 7.2 solution)