special subjects
Chamomile
What drug interactions occur with chamomile?
Chamomile may reduce the absorption of some drugs taken by mouth. Chamomile may also increase the effects of drugs that prevent blood clots (anticoagulants) and sedatives (including alcohol) and decrease the absorption of iron supplements. Chamomile could interfere with the effects oftamoxifen, hormone replacement therapy, and estrogen-containing oral contraceptives. 