Bactine is an antiseptic, first-aid treatment distributed by Wellspring Pharmaceutical Corporation. It was developed in 1947 and first used in 1950. It is a topically applied first aid liquid with active ingredients benzalkonium chloride (an antiseptic) and lidocaine (a topical anaesthetic). As an antiseptic, Bactine can help to prevent infections, while the topical anesthetic in Bactine serves to numb the surface of a body part and temporarily relieve pain and itching on the skin.