Progestin
Norethindrone with antibiotics: interactions and safety
Antibiotic courses are common, short-term and often combined with chronic medications such as Norethindrone (Norethindrone). Most antibiotics do not interfere meaningfully with Norethindrone at 5mg, but a few classes do, and a small number of combinations are best avoided.
Common antibiotic interactions
Macrolides (clarithromycin, erythromycin) and certain antifungals can inhibit hepatic metabolism (CYP3A4) and raise plasma levels of many medications including some Progestin agents. Rifampicin has the opposite effect, accelerating metabolism. Most penicillins, cephalosporins, fluoroquinolones and tetracyclines have no clinically meaningful interaction with Norethindrone at 5mg.
Practical guidance
According to the prescribing information for Norethindrone, an antibiotic course should be reviewed by the prescriber or pharmacist for known interactions before Norethindrone is co-administered. Adjusted 5mg dosing or temporary substitution is sometimes preferred for the duration of the antibiotic course.
Frequently asked questions
Can I take Norethindrone during an antibiotic course? ▾
For most common antibiotics, yes. A few classes — notably macrolides and azole antifungals — alter how Norethindrone is metabolised and may need a temporary 5mg adjustment. The prescribing pharmacist should review any new antibiotic against the existing Norethindrone regimen.
Will antibiotics make Norethindrone stop working? ▾
Most antibiotics do not affect Norethindrone efficacy. Rifampicin and a few others can lower Norethindrone levels and reduce effect; in those cases the prescriber may adjust the dose during and shortly after the antibiotic course.
Products containing Norethindrone
More on Norethindrone
- With alcoholNorethindrone and alcohol — is it safe to drink?
- With foodShould Norethindrone be taken with food?
- Side effectsNorethindrone side effects: common, rare and warning signs
- Dosage guideNorethindrone dosage guide: how much to take and when
- OnsetHow fast does Norethindrone start working?
- DurationHow long does Norethindrone last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.