Drug interactions
Ethinyl estradiol-norgestimate + Minocycline
Severity: Minor
Ethinyl estradiol-norgestimate and Minocycline: 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
Tetracyclines were once thought to reduce oral contraceptive effectiveness. Controlled data show no consistent fall in hormone levels or increase in ovulation, so the risk of contraceptive failure is low.
What this interaction means in plain words
Ethinyl estradiol-norgestimate and Minocycline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ethinyl estradiol-norgestimate belongs to Endocrine; Minocycline belongs to Anti Bacterial.
Why it happens
Theoretical reduction in enterohepatic recycling of estrogen through altered gut flora; not confirmed.
What to do
No routine extra contraception is needed; advise backup if vomiting or severe diarrhea occurs.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Ethinyl estradiol-norgestimate and Minocycline, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Ethinyl estradiol-norgestimate
- Ethinyl estradiol-norgestimate + Fezolinetant Contraindicated
- Ethinyl estradiol-norgestimate + Ombitasvir / paritaprevir / ritonavir and dasabuvir Contraindicated
- Ethinyl estradiol-norgestimate + Tranexamic acid Contraindicated
- Aminocaproic acid + Ethinyl estradiol-norgestimate Major
- Amobarbital + Ethinyl estradiol-norgestimate Major
- Anastrozole + Ethinyl estradiol-norgestimate Major
Other interactions of Minocycline
- Acitretin + Minocycline Contraindicated
- Isotretinoin + Minocycline Contraindicated
- Cholera vaccine + Minocycline Major
- Methoxyflurane + Minocycline Major
- Minocycline + Palovarotene Major
- Minocycline + Pexidartinib Major
Frequently asked questions
Can I take Ethinyl estradiol-norgestimate with Minocycline?
MediHelp rates the interaction as minor. Ethinyl estradiol-norgestimate and Minocycline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Tetracyclines were once thought to reduce oral contraceptive effectiveness. Controlled data show no consistent fall in hormone levels or increase in ovulation, so the risk of contraceptive failure is low.
How serious is the interaction between Ethinyl estradiol-norgestimate and Minocycline?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine extra contraception is needed; advise backup if vomiting or severe diarrhea occurs.
What other medicines interact with Ethinyl estradiol-norgestimate?
MediHelp also lists interactions of Ethinyl estradiol-norgestimate with, for example, Fezolinetant, Ombitasvir / paritaprevir / ritonavir and dasabuvir, Tranexamic acid. The full list is on the Ethinyl estradiol-norgestimate page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
