Neither any drug should be taken when it is expired, because it is possible that the effect of the drug will be weakened when it is expired, and this is a relatively mild side effect. Some drugs may deteriorate after the expiration date, causing more serious side effects, such as nausea, vomiting, abdominal pain, diarrhea and so on. In serious cases, it can cause more serious diseases, such as cardiovascular and cerebrovascular diseases, so you must not eat when the medicine expires. At the same time when buying drugs must pay attention to observe the production date and expiration date of the drug, if it is in the time to buy drugs to buy expired drugs, must be timely to replace, and do not take this drug, so more secure some.