Pills can be metabolized by the organism in 3-7 days in the body, after taking the drug in the body needs to go through 4 steps: absorption, distribution, metabolism and excretion. The metabolism of drugs refers to the process of oxidation, reduction, neutralization, decomposition, and change of chemical structure of drugs entering the body under the action of hepatic enzymes, and the pharmacological effects of drugs are weakened and disappeared after metabolism, which is mainly carried out in the liver. Different drugs have different metabolism time in the body, how long the drug is metabolized is determined by the half-life of the drug. Half-life is the time it takes for the concentration of a drug entering the bloodstream to decrease by half. Drugs with a long half-life are metabolized slowly in the body, while those with a short half-life are metabolized quickly in the body. How quickly a drug is metabolized is also affected by a variety of factors, such as the time it takes for the same drug to be metabolized in an adult, a child, a pregnant woman, an elderly person, or a person with liver or kidney insufficiency.