Pheniramine Maleate Injection for Veterinary Purpose is manufactured by Alpa Laboratories Limited. The Pheniramine Maleate Injection for Veterinary Purpose is antiallergics. This comes in 22.75 mg / ml Phenravin. Alpa Laboratories Limited is WHO-GMP and ISO 9001:2000 registered organization. Alpa Laboratories Limited also manufactures ethical drugs, counter drugs [OTC] and veterinary products in various formulations.