Drug abusers often try to conceal their symptoms and downplay their problem. If you’re worried that a friend or family member might be abusing drugs, look for the following warning signs
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, anxious, or paranoid, with no reason.