The interval between taking two different medications should be analyzed specifically based on the type of medication, and can generally be taken at the same time without intervals if there are no pharmacological interactions. 1. Simultaneous consumption: If there is no conflicting pharmacological effect between two drugs, or even no mutual pharmacological effect, two different drugs can be taken at the same time, for example, the lipid-lowering drugs and antihypertensive drugs at the same time, will not produce adverse pharmacological reactions, will not affect the absorption of the two drugs. 2. The best interval of half an hour: if the patient has both Chinese and Western medicines, when taking the general interval of more than half an hour, so that not only can reduce the stimulation of Chinese and Western medicines on the gastrointestinal mucosa, and the pharmacology of the two will not exist in conflict, to avoid producing adverse reactions. 3. more than three hours: two drugs if there is a mutual pharmacological effect or even the existence of conflicting pharmacological effects, eat two different drugs need to be separated by three hours or even longer, so as not to affect the absorption of the two drugs. 4. Follow the doctor’s instructions: according to the different effects of drugs, some drugs will require a different time to take, so when taking drugs need to follow the doctor’s instructions, not blindly take.