What types of drugs can impair basic driving skills?

Cold medicines, tranquilizers, and some prescription drugs can significantly impair basic driving skills due to their effects on the central nervous system. Many cold medicines contain ingredients that can cause drowsiness, decreased alertness, and slowed reaction times, making it difficult for a person to operate a vehicle safely. Tranquilizers, which are often prescribed for anxiety or sleep disorders, can also lead to sedation and impaired motor function. Some prescription medications, such as certain pain relievers or antidepressants, may have side effects that affect cognitive functions and coordination.

While over-the-counter medications and illegal drugs can impair driving, the specific combination of cold medicines and tranquilizers is particularly well-documented for causing impairment. Caffeine does not impair driving skills; rather, it can provide a temporary increase in alertness. Therefore, the answer identifies drugs that are commonly recognized for their potential to hinder a driver’s ability to function safely behind the wheel.