It is important to keep in mind that if a child shows any of the following symptoms, it does not necessarily mean that he or she is using drugs. The presence of some of these behaviors could be the product of adolescent stress. Others may be symptoms of depression or a host of other problems. Whatever the cause, they may warrant attention, especially if they persist or if they occur in a cluster. A mental health professional or a caring and concerned adult may help a youngster successfully overcome a crisis and develop more effective coping skills, often preventing further problems.
    The key is change; it is important to watch for any significant changes in your child's physical appearance, personality, attitude or behavior.
    Physical Signs
    • Loss of appetite, increase in appetite, any changes in eating habits, unexplained weight loss or gain.
    • Slowed or staggering walk; poor physical coordination.
    • Inability to sleep, awake at unusual times, unusual laziness.
    • Red, watery eyes; pupils larger or smaller than usual; blank stare.
    • Cold, sweaty palms; shaking hands.
    • Puffy face, blushing or paleness.
    • Smell of substance on breath, body or clothes.
    • Extreme hyperactivity; excessive talking.
    • Runny nose; hacking cough.
    • Needle marks on lower arm, leg or bottom of feet.
    • Nausea, vomiting or excessive sweating.
    • Tremors or shakes of hands, feet or head.
    • Irregular heartbeat.
    Behavioral Signs
    • Change in overall attitude/personality with no other identifiable cause.
    • Changes in friends; new hang-outs; sudden avoidance of old crowd; doesn't want to talk about new friends; friends are known drug users.
    • Change in activities or hobbies.
    • Drop in grades at school or performance at work; skips school or is late for school.
    • Change in habits at home; loss of interest in family and family activities.
    • Difficulty in paying attention; forgetfulness.
    • General lack of motivation, energy, self-esteem, "I don't care" attitude.
    • Sudden oversensitivity, temper tantrums, or resentful behavior.
    • Moodiness, irritability, or nervousness.
    • Silliness or giddiness.
    • Paranoia
    • Excessive need for privacy; unreachable.
    • Secretive or suspicious behavior.
    • Car accidents.
    • Chronic dishonesty.
    • Unexplained need for money, stealing money or items.
    • Change in personal grooming habits.
    • Possession of drug paraphernalia.

    Drug Specific Symptoms:
    Marijuana:Glassy, red eyes; loud talking and inappropriate laughter followed by sleepiness; a sweet burn scent; loss of interest, motivation; weight gain or loss.
    Alcohol:Clumsiness; difficulty walking; slurred speech; sleepiness; poor judgment; dilated pupils; possession of a false ID card.
    Depressants:(including barbiturates and tranquilizers) Seems drunk as if from alcohol but without the associated odor of alcohol; difficulty concentrating; clumsiness; poor judgment; slurred speech; sleepiness; and contracted pupils.
    Stimulants:Hyperactivity; euphoria; irritability; anxiety; excessive talking followed by depression or excessive sleeping at odd times; may go long periods of time without eating or sleeping; dilated pupils; weight loss; dry mouth and nose.
    Inhalants:(Glues, aerosols, and vapors ) Watery eyes; impaired vision, memory and thought; secretions from the nose or rashes around the nose and mouth; headaches and nausea; appearance of intoxication; drowsiness; poor muscle control; changes in appetite; anxiety; irritability; an unusual number of spray cans in the trash.
    Hallucinogens:Dilated pupils; bizarre and irrational behavior including paranoia, aggression, hallucinations; mood swings; detachment from people; absorption with self or objects, slurred speech; confusion.
    Heroin:Needle marks; sleeping at unusual times; sweating; vomiting; coughing and sniffling; twitching; loss of appetite; contracted pupils; no response of pupils to light.
    Tobacco/Nicotine:Smell of tobacco; stained fingers or teeth.
    Users’ techniques to avoid being identified:
    Get on the good side of the adults
    Stay stoned – some kids are under the influence so much of the time the adults are accustomed to their lethargic and detached manner and consider it part of the students personality
    Act dumb – When students can’t keep up with school work because of drug use, they act dumb to get help or sympathy.
    Lie low – never ask questions, never act out, never come to the attention of adults in any way
    Have an arsenal of explanations– excuses for drug-induced symptoms can range from“I’m just tired”, to “I’m having trouble with my contact lenses.”
    Be a fast talker – some students are really good at thinking on their feet. They can come up with believable stories for any adult.
    Find a weakness in the system (school) – many students go to the nurses’ office to sleep off the effects of drugs.
    Elicit sympathy – some kids rely on teachers or adults sympathy to insure that no one holds them accountable for their behavior
    Be compliant – sometimes doing everything right wards off confrontation.
    Lie and tell half truths –outright deception still works very well.