Prescription drug use a threat to motorists - 21 News Now, More Local News for Youngstown, Ohio -

CANFIELD, Ohio - Drinking while driving is a dangerous act with serious legal consequences.

But what about driving while taking prescription drugs? Even some allergy medicine can be a threat on the roadway.

We have all seen the warning; "do not to operate heavy machinery or operate a motor vehicle" while taking some medications.

It's the second most common warning label, next to stomach upset, but it's one that shouldn't be taken lightly.

"It is common enough that is why it's on so many different medications," warned Pharmacist Dan Wearsch. "You just can't disregard the fact that it can happen to you."

As the number of people using prescription drugs continues to grow, so does the concern.

Monday morning on WFMJ Today a viewer called in to the monthly Legally Speaking segment with Attorney Dave Betras. The caller expressed concern for a friend who was pulled over for swerving, but passed a breathalyzer test.

"Then he asked him are you on prescription medication?" explained the caller. "He said yes, and he said well I can give you a DUI, and he gave him a DUI."

"If you have prescription medication, a lot of people don't know this, and you're meds allows you to drive you cannot be convicted, there is an exception under the OVI law," Betras explained.

But anytime your medication advices you not to drive or if you take too much, you could face the consequences.

If you're not following the label and what your doctor is telling you to do, that's when it becomes a problem," said Sgt. Bret Henderson of the Ohio State Highway Patrol.

It's important to note that medications that impact your perception aren't only prescription drugs or pain killers. Wearsch points out that even Benadryl, purchased over the counter, could cause drowsiness and affect your ability to drive.

To be safe, try any new medication at home for the first time and see how it affects you. And talk to your doctor, there could be other options to a lot of medicines.