The time between infusions is not clearly defined and is mainly related to the medication used, which should be prescribed by the doctor. The drugs used in infusion will have different half-lives in the human body, mainly due to the fact that after the drugs enter the human body, they will be metabolized by the liver and kidneys to reduce the concentration of the drugs by half, which will take a certain period of time, and this period of time is called the half-life of the drugs. This period of time is called the half-life of the drug. Each drug has a different half-life after it enters the body. Drugs with a shorter half-life will naturally have shorter infusion intervals, generally 2 to 3 infusions a day. And there are some drugs, due to the half-life is longer, usually need 12 hours infusion once, or even once a day infusion can be. How long between infusions is determined by the patient’s specific condition and the medication used.