Possibly..: Fennel, the herb with yellow flowers, may interfere with birth control pills making them less effective. (Yikes!) It also decreases the effectiveness of some antibiotics.
Answered 6/26/2014
3.9k views
Estrogen effects: Fenell has purported estrogen like effects. Ideally it could affect medicines that have anti-estrogen effects like Tamoxifen. Also it appears to reduce how well your body absorbs ciprofloxacin. Hopefully that helps.
Answered 6/26/2014
3.9k views
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