Using popular pain reliever during pregnancy may increase child asthma risk

A new study published in the journal Clinical & Experimental Allergy reveals that children whose mothers used the popular pain reliever paracetamol during pregnancy were at an increased risk of wheezing when compared to non-users.

Paracetamol (or acetaminophen) is a widely used over-the-counter pain reliever and fever reducer, commonly used for the relief of headaches and other minor aches and pains.

Led by Professor Richard Beasley, DSc, of the Medical Research Institute of New Zealand, researchers reviewed all published randomised controlled trials and observational studies investigating the effect of paracetamol use during pregnancy on the subsequent development of wheezing and/or asthma in offspring. Six studies were identified and included in the review.

Results demonstrated that paracetamol used at any stage of pregnancy was associated with a subsequent 21% increased risk of asthma in children between 2.5 and 7 years old.

Although there is currently not enough evidence to recommend the avoidance of paracetamol during pregnancy, women should execute caution and use paracetamol only when required for significant pain or discomfort.

“Rates of asthma have been increasing around the world for several decades,” Beasley notes. “Definitive further research into the effect of paracetamol use in pregnancy on the risk of asthma in offspring is urgently required so that appropriate recommendations for pregnant women can be made.”

(Source: Wiley-Blackwell: Clinical & Experimental Allergy)

More information

For more information about pregnancy, including preconception advice, stages of pregnancy, investigations, complications, living with pregnancy and birth, see Pregnancy.