Valeant Pharmaceuticals Customer Service Phone Number Customer service: (800) 361-1448 Medical Information Phone Number: (877) 361-2719 Human Resources: (908) 927-1400   Valeant Pharmaceuticals Headquarters Info, Email, Phone number, Website and live chat Information Valeant Pharmaceuticals International, Inc. is a multinational specialty pharmaceutical company based in Laval, Canada. It develops, manufactures, and markets a broad range of