Estrogen / hormone replacement
Estradiol with antibiotics: interactions and safety
Antibiotic courses are common, short-term and often combined with chronic medications such as Estradiol (Estradiol). Most antibiotics do not interfere meaningfully with Estradiol at 0.5mg, 1mg, 2mg, 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 Estrogen / hormone replacement agents. Rifampicin has the opposite effect, accelerating metabolism. Most penicillins, cephalosporins, fluoroquinolones and tetracyclines have no clinically meaningful interaction with Estradiol at 0.5mg, 1mg, 2mg.
Practical guidance
According to the prescribing information for Estradiol, an antibiotic course should be reviewed by the prescriber or pharmacist for known interactions before Estradiol is co-administered. Adjusted 0.5mg, 1mg, 2mg dosing or temporary substitution is sometimes preferred for the duration of the antibiotic course.
Frequently asked questions
Can I take Estradiol during an antibiotic course? ▾
For most common antibiotics, yes. A few classes — notably macrolides and azole antifungals — alter how Estradiol is metabolised and may need a temporary 0.5mg, 1mg, 2mg adjustment. The prescribing pharmacist should review any new antibiotic against the existing Estradiol regimen.
Will antibiotics make Estradiol stop working? ▾
Most antibiotics do not affect Estradiol efficacy. Rifampicin and a few others can lower Estradiol levels and reduce effect; in those cases the prescriber may adjust the dose during and shortly after the antibiotic course.
Products containing Estradiol
More on Estradiol
- With alcoholEstradiol and alcohol — is it safe to drink?
- With foodShould Estradiol be taken with food?
- Side effectsEstradiol side effects: common, rare and warning signs
- Dosage guideEstradiol dosage guide: how much to take and when
- OnsetHow fast does Estradiol start working?
- DurationHow long does Estradiol last?
The information on this website is provided for reference and educational purposes only. It does not replace consultation with a qualified healthcare professional.