A medicine label warns that it may cause drowsiness. What is the safest course before driving?

Correct answer: Follow the label warning and do not drive if you are impaired.

Why

Prescription and nonprescription medicines can affect safe driving. Read warnings, ask an appropriate health professional about effects, and avoid driving while impaired. Maryland’s drug-driving provisions have specific categories and exceptions; possession of a lawful prescription is not a general permission to drive impaired. This safety decision does not require guessing a drug’s effect while already on the road.

Verified against Maryland Driver’s Manual and current Transportation Article · Medicine before a trip · p. 33