It invigorates the spleen, consolidates the kidney, nourishes blood, and prevents miscarriage. It is used for threatened abortion and recurrent abortion of kidney deficiency type and qi-blood deficiency type.

Yunkang Oral Liquid is derived from the "Miscarriage Prevention Formula" of the Yang School of Eshan, a renowned TCM (Traditional Chinese Medicine) gynecology school in Anhui Province. It is developed by modifying and adapting the essence of classic TCM formulas such as "Sijun Decoction" (a formula for invigorating qi), "Siwu Decoction" (a formula for nourishing blood), and "Shoutai Pill" (a formula for preventing miscarriage). The product is a large-formula preparation made from 23 carefully selected medicinal materials.

As one of the three major TCM gynecology schools in Anhui Province, the Yang School of Eshan has a heritage of over 600 years. It holds unique insights and distinctive medication characteristics in TCM gynecology, and enjoys a high reputation in the TCM field.

Yunkang Oral Liquid is an exclusive sugar-free variety and a Class B product in China's National Medical Insurance Catalog. It has been included in multiple clinical guidelines and teaching materials, such as Clinical Guidelines for Common Diseases in TCM Gynecology, Integrated TCM and Western Medicine Obstetrics and Gynecology, TCM Diagnosis and Treatment Protocol for Gynecological Diseases, and Integrated TCM and Western Medicine Diagnosis and Treatment Guidelines for Threatened Abortion, and is recommended for the treatment of threatened abortion and recurrent abortion.