Are pregnancy painkillers safe for babies?

Large analysis finds common pregnancy painkillers don’t raise birth-defect risk

Researchers reviewed data on more than 264,000 pregnancies over roughly two decades to assess whether two widely used categories of pain medications—paracetamol (also known by brand names such as Tylenol/Acamol) and non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen—are linked to birth defects.

The results are reassuring: the analysis found no evidence that taking paracetamol or NSAIDs during pregnancy increases the risk of birth defects.

That matters because these medications are frequently used for fever and pain, and many people are concerned about potential fetal risk. Clearer safety information can affect how clinicians counsel patients and how pregnant individuals weigh symptom relief against uncertainty.

The study also highlights an important nuance for interpreting medication risk. Instead of a medication-driven signal, the elevated risks observed in some cases were tied to maternal illness rather than to the drugs themselves. In other words, if underlying health problems in the pregnant person contribute to adverse outcomes, that can be mistaken for a drug effect unless studies adjust carefully for the reason the medicine was used.

In practical terms, this evidence supports the continued clinical use of these common painkillers when needed, aligning with the idea that untreated fever or pain can carry its own risks.

Key takeaways from the findings include:

• No birth-defect increase was detected for paracetamol or NSAIDs.
• Any risk patterns appear linked to maternal conditions, not the medication categories.
• The analysis is large enough to provide meaningful reassurance across many pregnancies.

More broadly, the study underscores how essential it is to separate the effects of treatment from the effects of the conditions that prompt treatment.