Investigating Acetaminophen’s Effects on Stroke Risk in Older Adults

Overview of Acetaminophen

Acetaminophen, commonly known as paracetamol, is a popular over-the-counter medication used for pain relief. While it is generally regarded as safe, it is also among the most frequently overdosed drugs and a leading cause of drug-induced liver failure.

Understanding Acetaminophen’s Mechanisms

Despite its long history of use, researchers are still uncovering the mechanisms through which acetaminophen operates in the body, as well as its potential side effects. Some studies have indicated a possible link between acetaminophen and various health issues, including asthma, kidney problems, bone fractures, blood cancers, and cardiovascular complications. Older adults are particularly vulnerable to drug side effects due to changes in body composition and physiology associated with aging.

Research Study in France

To explore the safety of acetaminophen in older adults, researchers in France conducted a study focusing on its effects on mortality, heart attack incidence, and stroke risk. Their findings were recently published in the Journal of the American Geriatrics Society. The study utilized data from the IQUARE project, which took place over an 18-month period in nursing homes in southwestern France. The IQUARE study aimed to enhance nursing care staff approaches to common medical issues faced by nursing home residents and included two comprehensive online questionnaires completed by care staff.

Study Participants and Methodology

The research included 5,429 participants, with an average age of 86 years, and approximately 75% of them were female. Out of these, 2,239 individuals were taking acetaminophen, while 3,190 were not. The researchers compared data on deaths, heart attacks, and strokes between the two groups.

Findings on Stroke Risk

The study revealed no significant increase in the number of deaths or heart attacks among participants taking acetaminophen compared to those who did not. Stroke occurrences were also similar in both groups. However, a slight increase in stroke risk was observed in participants with diabetes who were taking acetaminophen.

Conclusions on Acetaminophen Safety

The researchers concluded that acetaminophen is generally safe for most older adults and remains a recommended first-choice pain relief option. However, they noted that further research is necessary to evaluate the drug’s safety in older diabetic patients.

Expert Recommendations

Dr. Philippe Girard, the study’s lead author, emphasized the importance of understanding that all medications, including over-the-counter options, may carry potential side effects. He advises patients to consult their healthcare providers before starting any new medication.

Reference

Girard P, Sourdet S, Cantet C, et al. Acetaminophen safety: risk of mortality and cardiovascular events in nursing home residents, a prospective study. J Am Geriatr Soc 00:1-8, 2019. DOI: 10.1111/jgs.15861