Should I take an extra tablet of Fluoxetine if I vomit 3 hours after taking it?

You did not include the name of the drug in your question. If your question concerns Fluoxetine marked in the tags, please read on. It is not recommended to take an additional tablet of Fluoxetine in case of vomiting. Taking an additional dose may lead to an overdose, and this may result in vomiting, seizures, heart or lung problems: https://www.gdziepolek.pl/produkty/30651/fluoksetyna-egis-kapsulki/apteki Subsequent doses should be used at a fixed time. In the event that situations with vomiting are repeated, I encourage you to consult your doctor. You can also take advantage of the teleadvice offered m.in by the Gdziepolek.pl portal: https://www.gdziepolek.pl/telekonsultacja