Working Partners for an Alcohol- and Drug-Free Workplace. Photos representing the workforce - Digital Imagery© copyright 2001 PhotoDisc, Inc.

Impaired Driving

How Alcohol and Drugs Affect Driving

Alcohol (Beer, Wine, Whiskey, Gin, Rum, Vodka, Tequila, etc.)

  • Dulls judgment and concentration
  • Slows releases and reaction time
  • Leads to multiple, blurred and restricted side and night vision
  • Hinders muscle control and coordination
  • Exaggerates emotions
  • Increases drowsiness

Alcohol Plus Marijuana (Any alcoholic beverage and pot, hash or T.H.C.)

In addition to the effects of alcohol:

  • Dulls concentration and reasoning abilities
  • Slows reaction time
  • Leads to multiple vision and slowed glare recovery time\
  • Hinders muscle control coordination, maneuvering ability and ability to recognize traffic signals
  • Affects short term memory and tracking ability
  • Increases distraction and drowsiness

Alcohol Plus Antihistamines (Any alcoholic beverage and cold remedies such as Sudafed, Coricidin)

In addition to the effects of alcohol:

  • Dulls judgment and concentration
  • Slows reaction time
  • Leads to reduced vision
  • Hinders coordination
  • Increases drowsiness, confusion, and anxiety

Alcohol Plus Tranquilizers (Any alcoholic beverage and sleep medication such as Valium, Librium, Seconal, etc.)

In addition to the effects of alcohol:

  • Dulls judgment and concentration
  • Slows reflexes and reaction time
  • Leads to multiple, blurred and restricted side and night vision
  • Hinders coordination and motor skills
  • Increases drowsiness

Courtesy of the National Commission Against Drunk Driving (NCADD)