# Common Antibiotic Tied to Pregnancy Loss Risk

Source: [MedPageToday.com - medical news for physicians](https://www.medpagetoday.com/obgyn/pregnancy/123801) · 2026-11-09 · Medicine
Page: https://themorning.science/story/common-antibiotic-tied-to-pregnancy-loss-risk-523b63797c21227a
Kind: research · Impact: medium

## In brief

- A retrospective, active-comparator cohort study found that doxycycline use for respiratory tract infections or acne during early pregnancy was associated with an increased risk of pregnancy loss.
- Women exposed to doxycycline in early pregnancy had a higher risk of pregnancy loss than those given other antibiotics.
- The study was published in Annals of Internal Medicine, and the authors note doxycycline is frequently used by women of childbearing age.

## Why it matters

Doxycycline is commonly prescribed to women of childbearing age, so an association with pregnancy loss matters for prescribing decisions and patient counselling. The retrospective observational design shows an association, not proof that the drug causes the loss.

## Timeline

- 2026-11-09: Cohort study on doxycycline use in early pregnancy and pregnancy loss published in Annals of Internal Medicine

## Coverage

- [Common Antibiotic Tied to Pregnancy Loss Risk](https://www.medpagetoday.com/obgyn/pregnancy/123801) — MedPageToday.com - medical news for physicians, 2026-11-09
- [expert reaction to study finding use of common antibiotic doxycycline, in early pregnancy is linked to higher risk of pregnancy loss](https://www.sciencemediacentre.org/expert-reaction-to-study-finding-use-of-common-antibiotic-doxycycline-in-early-pregnancy-is-linked-to-higher-risk-of-pregnancy-loss/) — Science Media Centre, 2026-11-09
- [Doxycycline use in early pregnancy associated with higher risk of pregnancy loss](https://medicalxpress.com/news/2026-11-doxycycline-early-pregnancy-higher-loss.html) — Medical Xpress - latest medical and health news stories, 2026-11-09

Tags: doxycycline, pregnancy, antibiotics, pregnancy loss, cohort study

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Brief generated by AI (claude-haiku-5-5) from the reporting listed under Coverage. Headlines belong to their publishers. The Morning Science – https://themorning.science