Normally, alcohol and medication should not be taken at the same time. If the alcohol has been completely metabolized, there is no harm in taking the medication at this time, depending on the amount of alcohol consumed and the type of medication taken. It can take up to four or five hours for alcohol to be metabolized. That is, in the case of a relatively small amount of alcohol, it is not a problem to take the drug a few hours later. However, depending on the specific situation, and depending on the instructions of the drug, some drugs should never be shared with alcohol. If you drink very much alcohol, it may take 1-2 days or even about a week to metabolize all the alcohol, which is not a good time to take medication and you should not take it. For example, when certain cephalosporins are taken with alcohol, they can produce very serious adverse reactions, which usually have to be decided on a case-by-case basis.