How long does chemotherapy last in the body?

The duration of chemotherapy in the body varies with drug type, dosage, individual differences and other factors.

Different chemotherapy drugs are metabolized and excreted at different rates. Some chemotherapy drugs may be metabolized and excreted in a few hours, while others may stay in the body for days or longer. The half-life of a drug is an important indicator to measure its duration in the body. The drug with short half-life decreases rapidly in body concentration and lasts relatively short; the drug with long half-life is opposite. At the same

time, the individual's liver and kidney function will also affect the duration of chemotherapy drugs in the body. Good liver function can metabolize drugs more quickly, and normal kidney function can excrete drugs more effectively, thus shortening the residence time of drugs in the body. However, if the liver and kidney function are not complete, the metabolism and excretion of drugs will be hindered, which may lead to a longer duration in the body and increase the risk of toxic reactions of drugs.

In addition, higher doses of chemotherapy drugs may take longer to metabolize and clear than lower doses

. It is also important to note that drugs must be administered under the guidance of a doctor.