Does drug use ever improve reaction time?

A)Yes, in some cases by reducing it.
B)Yes, with cocaine.
C)No, not in any case.Correct
Reaction time is the time that elapses from when the driver sees an obstacle to when they react. This time varies depending on the driver's psychophysical state, never due to speed or road conditions.
The use of drugs, alcohol, being ill, etc. will reduce our ability to react to any unexpected situation, and as a result reaction time increases, causing the driver to react more slowly.