Drinking alcohol after taking roxithromycin can affect liver function, induce stomach disorders, and affect the effect of the drug at the same time. Roxithromycin is a common anti-inflammatory drug, which needs to be metabolized by the liver, and alcohol also needs to be metabolized by the liver, so drinking alcohol after taking Roxithromycin will increase the burden on the liver, causing some damage to liver function and adversely affecting the health of the body. Roxithromycin is more irritating to the mucous membrane of the gastrointestinal system, and alcohol will dissolve the mucus on the gastric mucosa and cause irritation to the cells of the stomach wall, so drinking alcohol after taking Roxithromycin can lead to the attack of gastritis and gastric ulcer. After taking roxithromycin, the drug needs to be released slowly to achieve better effect, but the blood circulation of human body will be accelerated after drinking, and the blood will be metabolized by human body more rapidly, and the effect of the drug will be affected to some extent.