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Drug interactions

Caffeine + Desogestrel-ethinyl estradiol

Severity: Minor

Caffeine and Desogestrel-ethinyl estradiol: minor interaction.

Last updated

For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.

Summary

Oral contraceptives containing ethinyl estradiol slow caffeine clearance, prolonging its half-life. Users may feel more jitteriness, palpitations, or insomnia at usual caffeine intake.

What this interaction means in plain words

Caffeine and Desogestrel-ethinyl estradiol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Caffeine belongs to Miscellaneous; Desogestrel-ethinyl estradiol belongs to Endocrine.

Evidence level: Moderate

Why it happens

Inhibition of CYP1A2-mediated caffeine metabolism by ethinyl estradiol.

What to do

Advise patients to reduce caffeine intake if they develop jitteriness, tachycardia, or sleep disturbance.

What to ask your pharmacist

  • Is there anything I should notice while taking both?
  • Do I need to tell my doctor at the next visit?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Caffeine with Desogestrel-ethinyl estradiol?

MediHelp rates the interaction as minor. Caffeine and Desogestrel-ethinyl estradiol have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral contraceptives containing ethinyl estradiol slow caffeine clearance, prolonging its half-life. Users may feel more jitteriness, palpitations, or insomnia at usual caffeine intake.

How serious is the interaction between Caffeine and Desogestrel-ethinyl estradiol?

MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise patients to reduce caffeine intake if they develop jitteriness, tachycardia, or sleep disturbance.

What other medicines interact with Desogestrel-ethinyl estradiol?

MediHelp also lists interactions of Desogestrel-ethinyl estradiol with, for example, Fezolinetant, Aminocaproic acid, Amobarbital. The full list is on the Desogestrel-ethinyl estradiol page.

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