Chloramphenicol is used as an antibiotic in the management and treatment of superficial eye infections such as bacterial conjunctivitis, and otitis externa. It has also been used for the treatment of typhoid and cholera.

The specification of Ascorbic acid, which produced by Northeast Pharmaceutical Group Co., Ltd., is established with reference of all requirements of the European Pharmacopeia (EP), British Pharmacopoeia (BP), United States Pharmacopeia(USP), Food Chemicals Codex(FCC) and E300.