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Discover Supplement-Drug Interactions

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Last Updated: 3 years ago

Possible Interaction: Caffeine and Levonorgestrel



Research Papers that Mention the Interaction

Compared with pretreatment values, the clearance of caffeine was reduced by about 54% and 55% after one treatment cycle with gestodene- and the levonorgestrel-containing oral contraceptive , respectively.
European Journal of Clinical Pharmacology  •  2004  |  View Paper
Intake of levonorgestrel (0.125 mg) daily for 14 days reduced the metabolism of caffeine slightly, but the elimination of metamizol-metabolites is not influenced.
Zentralblatt fur Gynakologie  •  1991  |  View Paper