Cabergoline for Lactation Inhibition After Early Second-Trimester Abortion or Pregnancy Loss: A Randomized Controlled
Andrea Henkel1, Erica P Cahill, Sonia Chavez
1Division of Family Planning Services and Research and the Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Stanford University School of Medicine, and Stanford Health Care, Palo Alto, and Planned Parenthood Mar Monte, San Jose, California.
Obstetrics and Gynecology
|January 15, 2026
Summary
Cabergoline effectively prevents lactation symptoms after early second-trimester pregnancy loss or abortion. This well-tolerated medication significantly reduced breast symptoms and bother compared to placebo.
Area of Science:
- Reproductive Health
- Pharmacology
- Obstetrics and Gynecology
Background:
- Lactation symptoms can be distressing after early second-trimester abortion or pregnancy loss.
- Effective management of these symptoms is crucial for patient well-being.
Purpose of the Study:
- To evaluate the efficacy of cabergoline in reducing lactation symptoms following early second-trimester uterine evacuation.
- To compare cabergoline's effectiveness against a placebo in preventing bothersome breast symptoms.
Main Methods:
- A multisite, double-blind, superiority trial involving 69 participants at 16-20 weeks gestation.
- Participants received either cabergoline (1 mg) or placebo within 4 hours of uterine evacuation.
- Breast symptoms and bother were assessed via electronic surveys on day 4 post-procedure.
Main Results:
- Cabergoline significantly reduced the incidence of breast symptoms on day 4 compared to placebo (50.0% vs 88.2%, P<.001).
- Fewer participants receiving cabergoline reported significant bother from breast symptoms (3.1% vs 20.6%, P=.05).
- These benefits were observed across different gestational durations within the studied range.
Conclusions:
- Cabergoline is an effective medication for preventing lactation symptoms after early second-trimester abortion or pregnancy loss.
- The drug is well-tolerated and offers significant relief from breast engorgement, leakage, and tenderness.
