There are two kinds of Saineng, the only difference is packaging. Sanofi Pharmaceutical Co., Ltd. is the manufacturer of new packaging of Saineng, and Shanghai Shangyao Chinese and Western Pharmaceutical Co., Ltd. is the manufacturer of old packaging.
Saineng is a product of hydroxychloroquine sulfate tablets produced by Sanofi Pharmaceutical Co., Ltd. The indications of this product are rheumatoid arthritis, discoid and systemic lupus erythematosus, juvenile chronic arthritis and skin diseases caused or aggravated by sunlight.