Droperidol vs prochlorperazine for the treatment of acute headache.

To determine if droperidol i.v. is as effective as prochlorperazine i.

A prospective, randomized, double-blind comparison of buffered versus plain tetracaine in reducing the pain of topical ophthalmic anesthesia.

Study Objective: We determine whether buffering ocular tetracaine hydrochloride reduces the pain of instillation.

Methods: We conducted a prospective, randomized, double-blind, 2-treatment, 2-period crossover, single center study of healthy volunteers 18 years of age or older. Participants were randomized to receive either 2 drops of buffered or plain tetracaine in a randomly assigned eye.