Over 20% of Seniors Use Drug Combinations That May Trigger Major Interactions

A recent JAMA article reports that over 20% of U.S. adults between 62 and 85 are exposed to potentially major drug-drug interactions. Analyzing nationally representative data from almost 5,000 participants, researchers observed a modest decline in interaction prevalence from 25.7% to 22.3%, yet the risk remains substantial. Use of five or more prescription drugs increased from 31% to 35.7%, and supplement polypharmacy grew from 12.6% to 16.7%.

The most frequent high-risk pairings involved antidepressants, statins and antiplatelet agents. Specialists highlight that each added medication amplifies pharmacokinetic and pharmacodynamic complexity, raising the likelihood of adverse events and preventable hospital stays. The study calls for improved medication reviews and coordination across providers to safeguard older patients.