Atorvastatin (Lipitor) Should Not Be Taken During Pregnancy
Atorvastatin (Lipitor) should be discontinued during pregnancy as it may cause fetal harm. 1
Risk Assessment for Statins in Pregnancy
- The FDA drug label for atorvastatin clearly states that it "may cause fetal harm" and should be discontinued during pregnancy 1
- Atorvastatin's patient information explicitly instructs: "If you become pregnant, stop taking atorvastatin calcium tablets and call your healthcare provider right away" 1
- Statins are generally not recommended during pregnancy for most women, particularly those taking them for primary prevention of cardiovascular disease 2
Special Considerations for High-Risk Patients
- In July 2021, the FDA revised information regarding statins in pregnancy, removing the absolute contraindication for all pregnant patients 2
- For a small subset of very high-risk pregnant patients, the benefits of statin therapy may outweigh risks in specific situations:
- Women with homozygous familial hypercholesterolemia (HoFH) 2, 3
- Women with established clinical atherosclerotic cardiovascular disease (ASCVD) at very high risk for heart attack or stroke 2
- In these rare cases, healthcare professionals and patients should make individual decisions about benefit and risk 2
Recommendations Based on Risk Category
For Primary Prevention (Most Cases):
- Women taking statins for primary prevention of ASCVD should discontinue therapy:
- At least 1 month and preferably 3 months before attempted conception, or
- Immediately if already pregnant 2
- Alternative therapies during pregnancy:
For Very High-Risk Patients Only:
- Patients with established clinical ASCVD identified as very high risk should:
Safety Evidence and Concerns
- Recent large observational studies have not demonstrated evidence of major congenital malformations with statin exposure 2, 5
- However, a 2021 study found statin exposure during pregnancy was associated with:
- Higher risk of low birth weight (RR 1.51)
- Greater chance of preterm birth (RR 1.99)
- Lower 1-minute Apgar scores (RR 1.83) 5
- Pravastatin may have a better safety profile than other statins if treatment is absolutely necessary during pregnancy 6
Post-Pregnancy Considerations
- Lipid-lowering therapy may be resumed after completion of breastfeeding 2
- Breastfeeding is not recommended during treatment with atorvastatin calcium tablets 1
Clinical Decision Algorithm
- Determine if patient is pregnant or planning pregnancy
- Assess cardiovascular risk category:
- Primary prevention → Discontinue atorvastatin immediately
- Very high-risk (ASCVD or HoFH) → Consult specialist for risk-benefit assessment
- If discontinuation is indicated:
- Monitor for significant elevations in LDL-C and triglycerides during pregnancy
- Counsel on lifestyle modifications
- Consider bile acid sequestrants if absolutely necessary
- Resume statin therapy after completion of breastfeeding