Cetacaine Topical Anesthetic is a fast-acting, long-lasting prescription topical anesthetic that is indicated for anesthesia of accessible mucous membrane except the eyes and can be applied directly to the required site. Cetacaine is a numbing agent primarily used to control pain and ease discomfort at the site where it is applied. Benzocaine 14.0%, Butamben 2.0%, Tetracaine Hydrochloride 2.0%. Onset of anesthesia is rapid and duration is typically 30-60 minutes when used as directed. Unique needle-free, cartridge-free delivery system.