Texas Car / Permit practice question · Alcohol & Drugs

Prescription and over-the-counter medicines:

Answer choices

• can impair driving, so you should check the label and warnings first— Correct answer
• are always safe to take before driving
• only affect driving if mixed with alcohol
• improve your reaction time behind the wheel

Why this is the answer

Any drug can affect your ability to drive, including prescription and over-the-counter medicines. Many over-the-counter drugs cause drowsiness in some people, so read the label and, if you are taking more than one drug, check with a doctor or pharmacist. Medicines are not always safe to take before driving, and the effects differ from person to person.

Source: Texas Driver Handbook — Drugs and Driving

Content reviewed against official driver handbooks · August 12, 2026