Substance Abuse: Warning Signs of Substance Abuse

The following is a list of warning signs of possible drug abuse.

Physical warning signs of drug abuse

  • Bloodshot eyes, pupils larger or smaller than usual
  • Changes in appetite or sleep patterns
  • Sudden weight loss or weight gain
  • Deterioration of physical appearance, personal grooming habits
  • Unusual smells on breath, body, or clothing
  • Tremors, slurred speech, or impaired coordination

Behavioral signs of drug abuse

  • Drop in attendance and performance at work or school
  • Unexplained need for money or financial problems; may borrow or steal to get it
  • Engaging in secretive or suspicious behaviors
  • Sudden change in friends, favorite hangouts, and hobbies
  • Frequently getting into trouble (fights, accidents, illegal activities)

Psychological warning signs of drug abuse

  • Unexplained change in personality or attitude
  • Sudden mood swings, irritability, or angry outbursts
  • Periods of unusual hyperactivity, agitation, or giddiness
  • Lack of motivation; appears lethargic or “spaced out”
  • Appears fearful, or paranoid

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