By Lauran Neergaard
Associated Press
WASHINGTON — Some common medications for colds, allergies or anxiety can impair driving ability as much as alcohol does — but in ways so subtle that people may not know they’re zonked behind the wheel.
The government is debating how to warn people about medicating before driving cars, boats, trains or airplanes. The Food and Drug Administration is considering whether it’s time to test crash victims’ blood for legal medications.
It’s a sticky issue. Today, fine-print warnings on dozens of over-the-counter medications say they can cause sedation. But new research using driving simulators and other sophisticated tests suggests sedation is the wrong word: You may not feel sleepy even as the drug slows your reaction time or leaves you weaving across the road.
Consequently, people who aren’t yawning may falsely assume it’s OK to drive, critics told a joint meeting of the nation’s top drug regulators and driving safety experts last week.
As for prescription drugs, experts say doctors hardly ever warn against driving, even though some anxiety remedies in particular double the risk of a crash.
So what should consumers do before taking the wheel?
"I’m a consumer, too, and even I find it very confusing," says Dr. John Weiler of the University of Iowa, whose tests in a state-of-the-art driving simulator found a common cold remedy, diphenhydramine, can impair driving as much as alcohol.
"Unfortunately, there is no list" of drugs to avoid while driving, he says. "We are not there yet. We are not even close."
Indeed, here’s the rub: Despite sophisticated research showing some medications impair driving, little data exist from actual car crashes to prove how risky the drugs are in everyday use.
While the safety officials debate, what is known?
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