Pregnancy and breastfeeding can change the way people think about medicines.
A medicine that was routinely used before pregnancy may need to be reconsidered, while another medicine may remain appropriate when its benefits outweigh potential risks.
The most important point is that there is no universal rule that all medicines are unsafe during pregnancy or breastfeeding.
Some medicines can be used safely in particular circumstances, while others may pose significant risks. The decision depends on the specific medicine, dose, timing, condition being treated and individual circumstances.
If You Become Pregnant While Taking Medicine
Do not automatically stop a prescribed medicine.
The decision to continue, change or stop treatment should be discussed with a healthcare professional.
In some situations, leaving an important medical condition untreated can itself pose risks to the pregnant person or developing fetus. MedlinePlus specifically advises speaking with a healthcare provider before starting or stopping medicines during pregnancy.
Why Timing Matters
Pregnancy is not one medically identical period.
The potential effects of a medicine can depend on when exposure occurs during pregnancy, as well as the dose and duration of treatment.
This is one reason why pregnancy-related medicine information should be specific to the medicine rather than based on broad assumptions.
Prescription and OTC Medicines Both Matter
Pregnancy considerations apply to both prescription and nonprescription medicines.
A product being available without a prescription does not automatically mean it is appropriate during pregnancy.
The FDA recommends discussing medicines, supplements and vitamins with a healthcare professional during pregnancy.
What About Vitamins and Supplements?
Pregnancy supplements also deserve attention.
People sometimes assume that vitamins, herbs and other “natural” products cannot cause problems.
That assumption isn’t reliable.
Some supplements can interact with medicines or may not be appropriate in particular circumstances.
Medicines and Breastfeeding
After birth, the question changes from fetal exposure to possible exposure through breast milk.
Some medicines can pass into breast milk, but the amount and clinical significance vary considerably between medicines.
The decision to use a medicine while breastfeeding may depend on:
- The medicine
- Dose
- How frequently it is taken
- How much enters breast milk
- The age and health of the infant
- Whether safer alternatives exist
FDA prescription labeling now includes dedicated pregnancy and lactation information to help healthcare professionals assess benefits and risks.
What Information Should You Give Your Healthcare Professional?
When asking about a medicine during pregnancy or breastfeeding, provide a complete list of:
- Prescription medicines
- OTC medicines
- Vitamins
- Herbal products
- Supplements
Also mention the dose and how frequently you use each product.
This allows the healthcare professional to assess the complete picture rather than looking at one medicine in isolation.
What Should You Ask?
Useful questions include:
Why do I need this medicine?
What are the potential benefits and risks?
Is there an alternative with more pregnancy or breastfeeding safety information?
Should my dose or treatment schedule change?
Do I need to monitor myself or my baby for anything specific?
Don’t Rely on Internet Claims Alone
Medicine information online can be useful, but pregnancy and breastfeeding are situations where generalized claims can be particularly misleading.
A website saying that a medicine is “safe” or “unsafe” without explaining the circumstances may oversimplify a complicated clinical decision.
FDA similarly advises people to discuss online medicine information with their healthcare provider rather than relying on unsupported claims.
