The liver-protective drugs that are taken orally are mainly used for mild liver injury to protect liver function, such as glucuronide, biphenyldiphenhydramine, liver protection tablets, or silymarin glucosamine tablets and compound glycyrrhetinic acid tablets, some of these drugs and multivitamins have a protective effect on the liver. If the patient’s liver function is more severely damaged, there are also infusion methods or injections for liver function damage, such as hepatic hydrolytic peptide injection, reduced glutathione and inosine injection.