If I took oseltamivir 10 minutes ago and then vomited, should I take another dose?

Oseltamivir is commonly available in granules, capsules, and suspensions. Generally, if vomiting occurs 10 minutes after taking oseltamivir, a supplementary dose is needed. If any abnormalities occur, timely medical attention is recommended. The detailed explanation is as follows:

The absorption time of medication in the body is usually relatively long. If vomiting occurs within 10 minutes after taking oseltamivir, the drug may not yet have been adequately absorbed and much of it may have been expelled through vomiting. To ensure effective drug concentration, a full supplementary dose is generally required. However, taking supplementary doses should be conducted under the guidance of healthcare professionals to avoid self-administration and potential drug overdose.

In addition, if vomiting occurs between 15 minutes and 1 hour after taking the medication, a half supplementary dose may be considered. If vomiting occurs more than 1 hour after taking the medication, the drug is typically already well absorbed, and a supplementary dose is generally unnecessary.

Patients should maintain good living habits and healthy dietary practices in daily life to improve treatment outcomes by actively optimizing their physical condition.