Century Pharmaceuticals Ltd. Manufactures Cistamin Injection for Veterinary Use. This injection is available in 30 ml & 100 ml pack. The Cistamin Injection is an excellent Antihistaminic and Antiallergic that provides quick relief from Allergic Manifestations in animals. Cistamin Injection is a proven anti-allergic providing quick relief from allergic manifestations in animals. Its highly effective antihistaminic action helps in treatment of various types of itching and cures even the most chronic allergy from root itself. Century Pharmaceuticals Ltd. Is an ISO 9001 certified company. Century Pharmaceuticals Ltd. Manufactures Active Pharmaceutical Ingredients, and finished Veterinary products.