Carbine Chemicals Cyanamax 600mlEach ml contains: 1500ug Cyanocobalamin Dosage: 2 4ml daily or whenever required. FOR ORAL USE ONLY Directions for Use: Withdraw the required amount with a syringe and a 14 or 16 gauge needle, then detach needle from the syringe and administer contents directly into the horse's mouth. All members of the Instamax Range can be withdrawn into the same syringe and can be safely given by anyone, anywhere, anytime