Tuberculosis drugs taken in the morning and at night usually do not have a great effect, except for rifampicin, which is taken in the morning, and usually needs to be taken after meals. Tuberculosis drugs to the liver and kidneys can produce some damage to the liver and kidneys, but also to the gastrointestinal tract will cause relatively strong stimulation. Taking it before meals is likely to cause nausea, stomach upset, acid reflux and other gastrointestinal reactions, which will affect the absorption of the drug and the body’s recovery. Taking tuberculosis drugs after meals can largely reduce the stimulation of the drug on the gastric mucosa, but also help the stomach and intestines to effectively absorb the drug to play a role. Therefore, tuberculosis drugs should be taken after meals, specifically after breakfast or after dinner, usually does not affect the effect of drugs. Tuberculosis drug taking time must strictly follow the doctor’s advice, do not blindly decide on their own.