Hainan Shuangcheng Pharmaceuticals Co., Ltd. researches, develops, manufactures, and markets synthesized peptide drugs and active pharmaceutical ingredients worldwide. It offers somatostatin, thymosin, clindamycin hydrochloride, thymopentin, L-carnitine, uranin hydrobromide, inosine, cyclophosphine adenosine, motidine, scopolamine, and sodium ferulate for injections, as well as vitamin B6. The company was founded in 2000 and is based in Haikou, the People's Republic of China.