Vomiting occurs after oral administration of antipyretic drugs, if all the drugs are vomited out, you can continue to take them, if the drugs are taken for more than 15 minutes after the vomiting occurs, it is not recommended to take the drugs again. Fever-reducing drugs are antipyretic and analgesic drugs, the gastric mucosa will cause some stimulation, easy to vomit after taking the drug, if you just drink it down and then vomiting, the drug into the stomach for a shorter period of time, has not yet played the effect of the drug, at this time you can take it again orally, generally will not have a significant impact on the body. If vomiting occurs more than 15 minutes after taking antipyretic, the drug may have been absorbed, and it is not recommended to take antipyretic again at this time, so as not to overdose the drug on the human body. It is recommended to take medication under the guidance of a physician, and not to use medication indiscriminately.