Lecithin is mainly used for atherosclerosis and other diseases of adjuvant therapy, for pregnant women and other groups of people need to be used with caution, drug allergy is prohibited. Lecithin can be used to assist in the treatment of fatty liver, atherosclerosis and other diseases. In addition, it is also effective in improving liver function and blood lipids. Allergy to lecithin is an absolute contraindication to the drug. For pregnant women, lactating women and children, there is no relevant authoritative literature to clarify whether there is a contraindication, so caution is recommended. Lecithin is metabolized in the body to acetylcholine, a transmitter of nerve impulses that excites cholinergic neurons, and is not recommended for use in cholinergic hyperfunctioning disorders, as it may exacerbate symptoms. Lecithin for disease treatment drugs, no relevant indications, is not recommended for use, the use of which should be carried out under the guidance of clinicians, prohibited unauthorized use of drugs.