Parnell Pharmaceuticals Holdings Limited is a veterinary pharmaceutical company. The Company is focused on developing, manufacturing and commercializing animal health solutions. The principal activities of the Company include manufacture for global sale of animal pharmaceutical product, and research and development of pharmaceutical products for global animal health markets. The Company operates through four segments: Companion Animal, Production Animal-U.S., Production Animal-Rest of World and Manufacturing Operations. It augments its pharmaceutical products with its FETCH and mySYNCH software platforms. It offers disease-modifying product, Zydax, for the treatment of osteoarthritis (OA). Its reproductive hormone products include estroPLAN and GONAbreed. It has a nutraceutical product, Glyde. It also markets a non-steroidal anti-inflammatory drug (NSAID), called Tergive. It is developing a pipeline of clinical drug candidates, such as PAR 121, PAR 122, PAR 101, PAR 081 and PAR 061.