Splenopeptide Oral Lyophilized Powder may be ineffective when stored below 0 degree Celsius. Splenic aminopeptide oral lyophilized powder is mainly composed of peptides and nucleotides extracted from fresh porcine spleen, generally need to be preserved in an environment of 2 to 8 degrees Celsius, and be careful to avoid light, the temperature is relatively low in frozen storage, which may result in the inactivation of the active substance of the drug, reducing the efficacy of the drug, and may lead to drug deterioration and ineffectiveness after a long period of time, and it is recommended that the drug be preserved in accordance with the provisions of the regulations. Splenopeptide oral lyophilized powder is an immunomodulator, which can trigger and enhance the body’s cellular immune function, promote the body’s immune balance, usually used in the treatment of cellular immune insufficiency, immunodeficiency and autoimmune dysfunction diseases. It is recommended to use the drug strictly under the guidance of physicians.