The abortion pill (medical abortion) commonly causes cramping and vaginal bleeding as the primary side effects, typically beginning within hours of taking the medication[4][2][8].
Other frequently reported side effects include:
- Nausea, vomiting, and diarrhea[1][6][2]
- Dizziness and headache[1][6][2]
- Fever and chills[1][6][2]
- Fatigue and body aches[2]
- Back pain and breast tenderness[6][2]
- Blood clots passed vaginally, usually no larger than a tennis ball[2][3]
- Irregular or prolonged bleeding, sometimes lasting for weeks[1][7][5]
Most symptoms resolve within several hours to a day, although light bleeding or spotting may persist for up to several weeks[5][7]. Seek medical attention if severe symptoms develop, such as:
- Heavy bleeding (filling two or more large pads per hour for more than two hours)[1][8]
- Persistent nausea, vomiting, diarrhea, or fever lasting longer than 24 hours (may indicate infection)[1][2]
- Severe abdominal pain not controlled by pain medication[3]
Less common but serious complications can include:
- Hemorrhage (very heavy bleeding), sometimes requiring a blood transfusion[1]
- Retained tissue in the uterus requiring further treatment[1]
- Pelvic or uterine infection (can present with fever, pain, abnormal discharge, or general illness)[1][3]
- Continued pregnancy if the medication is not fully effective[1]
- Rarely, sepsis (severe body infection)[3]
- Cardiac side effects, such as changes in heart rhythm (QT prolongation), fainting, or serious arrhythmias[5]
Follow-up with a healthcare provider is recommended to ensure the procedure is complete and to monitor for complications[4][3].
References
- [1] Abortion procedures – medication | Better Health Channel
- [2] What to Expect After Taking an Abortion Pill – Women’s Clinic of Atlanta
- [3] 8 Abortion Pill Side Effects & What You Need to Know
- [4] Medical Abortion: What It Is, Pain, Risks & Recovery – Cleveland Clinic
- [5] Mifepristone (oral route) – Side effects & dosage – Mayo Clinic
- [6] Taking Abortion Pills: What to Expect
- [7] Medical Abortion Care – MyHealth Alberta
- [8] What are the Side Effects of the Abortion Pill?