Ibuprofen has a negative impact on the testicles of young men, a study published Monday in the journal Proceedings of the National Academy of Sciences found.
When taking ibuprofen in doses commonly used by athletes, a small sample of young men developed a hormonal condition that typically begins, if at all, during middle age. This condition is linked to reduced fertility.
Advil and Motrin are two brand names for ibuprofen, an over-the-counter pain reliever.
The Consumer Healthcare Products Association, a trade group that represents manufacturers of over-the-counter medications and supplements, “supports and encourages continued research and promotes ongoing consumer education to help ensure safe use of OTC medicines,” said Mike Tringale, a spokesman for the association.
“The safety and efficacy of active ingredients in these products has been well documented and supported by decades of scientific study and real-world use.”
The new study is a continuation of research that began with pregnant women, explained Bernard Jégou, co-author and director of the Institute of Research in Environmental and Occupational Health in France.
Jégou and a team of French and Danish researchers had been exploring the health effects when a mother-to-be took any one of three mild pain relievers found in medicine chests around the globe: aspirin, acetaminophen (also known as paracetamol and sold under the brand name Tylenol) and ibuprofen.