Is it ok to use feverfew with prescritption medicine or is that too much?

Most physicians won't endorse supplements like feverfew as they are not investigated by the FDA and there is concern about presence of contaminants that could interact with your prescription medications or affect blood pressure,etc. Tylenol is safe,though.

Feverfew is primarily used to treat & prevent headaches. Feverfew may decrease how quickly the liver breaks down certain medications. Therefore taking feverfew may increase the effects & side effects of some medications. So I would suggest you discuss any possible interactions between feverfew & any medications you may be taking with your primary care physician. I wish you well with your health!