Etonogestrel and Amoxicillin Interaction

Drug interaction information between Etonogestrel and Amoxicillin.

Etonogestrel and Amoxicillin have a documented minor interaction in FDA labeling.

FDA drug labeling documents a minor-severity interaction between Etonogestrel and Amoxicillin. This page displays the available source-record category and label text. The category is not an individual risk estimate or medication-combination direction.

Drug A

Etonogestrel

Progestin (Implant)

Drug B

Amoxicillin

Penicillin Antibiotic

How They Interact

This antibiotic does not change the levels of birth control hormones in your blood.

FDA Label Information

The serum concentrations of etonogestrel and ethinyl estradiol were not affected by concomitant administration of oral amoxicillin or doxycycline in standard dosages during 10 days of antibiotic treatment.

Frequently Asked Questions

What SPL severity band is on file for Etonogestrel + Amoxicillin?

Compiled FDA labeling labels this pair minor. That is a source-record field, not an individual medication-combination decision.

Which drug in this pair has the larger labeled-interaction portfolio?

Etonogestrel has 29 labeled pairs on file vs Amoxicillin's 12. In the minor band specifically: Etonogestrel has 27 (also Atorvastatin, Lamotrigine, Topiramate, Doxycycline); Amoxicillin has 7 (also Estradiol, Progesterone, Amoxicillin/Clavulanate, Ethinyl Estradiol).

What mechanism field is on file for Etonogestrel and Amoxicillin?

This antibiotic does not change the levels of birth control hormones in your blood.

Amoxicillin carries more major-labeled pairs than Etonogestrel

SPL source-record counts only. This page's band is minor · classes on file: Etonogestrel (Progestin (Implant)); Amoxicillin (Penicillin Antibiotic).

Amoxicillin has 3 major-labeled pairs vs Etonogestrel's 0. This page itself is in the minor band, not the major band.

Etonogestrel

0 major · 2 moderate · 27 minor · 29 total

Amoxicillin

3 major · 2 moderate · 7 minor · 12 total

Sources: FDA Drug Labels (SPL) via openFDA (2026). This is for informational purposes only and is not medical advice. This registry does not provide individual medication-combination directions.