How long to take anti-inflammatory drugs for the second time needs to be determined according to the half-life of the drug taken by the patient as well as factors such as the requirements for taking, the second time should be taken in accordance with the instructions. If the patient takes the anti-inflammatory drugs are taken three times a day, such as cephalosporin, penicillin and other drugs, you can calculate the interval time, divided into three periods of 24 hours, that is, an interval of 8 hours to take the second time, the specific method of taking reference to the instructions as well as to follow the doctor’s advice to take. If the patient is taking anti-inflammatory drugs can only be taken once a day, this kind of drugs usually need to take a second time at an interval of 24 hours, again, the method of taking need to refer to the instructions. It is recommended that patients consult a medical professional before taking anti-inflammatory drugs and take them under the guidance of a doctor, rather than using them on their own.