Signs and Symptoms of Drug Abuse and Addiction

Although different drugs have different physical effects, the symptoms of addiction are similar. See if you recognize yourself in the following signs and symptoms of substance abuse and addiction. If so, consider talking to someone about your drug use.

Common signs and symptoms of drug abuse

• You’re neglecting your responsibilities at school, work, or home (e.g. flunking classes, skipping work, neglecting your children) because of your drug use.
• You’re using drugs under dangerous conditions or taking risks while high, such as driving while on drugs, using dirty needles, or having unprotected sex.
• Your drug use is getting you into legal trouble, such as arrests for disorderly conduct, driving under the influence, or stealing to support a drug habit.
• Your drug use is causing problems in your relationships, such as fights with your partner or family members, an unhappy boss, or the loss of old friends.

Common signs and symptoms of drug addiction

• You’ve built up a drug tolerance. You need to use more of the drug to experience the same effects you used to attain with smaller amounts.
• You take drugs to avoid or relieve withdrawal symptoms. If you go too long without drugs, you experience symptoms such as nausea, restlessness, insomnia, depression, sweating, shaking, and anxiety.

• You’ve lost control over your drug use. You often do drugs or use more than you planned, even though you told yourself you wouldn’t. You may want to stop using, but you feel powerless.
• Your life revolves around drug use. You spend a lot of time using and thinking about drugs, figuring out how to get them, and recovering from the drug’s effects.
• You’ve abandoned activities you used to enjoy, such as hobbies, sports, and socializing, because of your drug use.
• You continue to use drugs, despite knowing it’s hurting you. It’s causing major problems in your life—blackouts, infections, mood swings, depression, paranoia—but you use anyway.

Warning signs that a friend or family member is abusing drugs

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.

Warning Signs of Commonly Abused Drugs

• Marijuana: Glassy, red eyes; loud talking, inappropriate laughter followed by sleepiness; loss of interest, motivation; weight gain or loss.
• Depressants (including Xanax, Valium, GHB): Contracted pupils; drunk-like; difficulty concentrating; clumsiness; poor judgment; slurred speech; sleepiness.
• Stimulants (including amphetamines, cocaine, crystal meth): Dilated pupils; 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; weight loss; dry mouth and nose.
• Inhalants (glues, aerosols, 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; lots of cans/aerosols in the trash.
• Hallucinogens (LSD, PCP): Dilated pupils; bizarre and irrational behavior including paranoia, aggression, hallucinations; mood swings; detachment from people; absorption with self or other objects, slurred speech; confusion.
• Heroin: Contracted pupils; no response of pupils to light; needle marks; sleeping at unusual times; sweating; vomiting; coughing, sniffling; twitching; loss of appetite.

Warning signs of teen drug abuse

While experimenting with drugs doesn’t automatically lead to drug abuse, early use is a risk factor for developing more serious drug abuse and addiction. Risk of drug abuse also increases greatly during times of transition, such as changing schools, moving, or divorce. The challenge for parents is to distinguish between the normal, often volatile, ups and downs of the teen years and the red flags of substance abuse. These include:

• Having bloodshot eyes or dilated pupils; using eye drops to try to mask these signs.
• Skipping class; declining grades; suddenly getting into trouble at school.
• Missing money, valuables, or prescriptions.
• Acting uncharacteristically isolated, withdrawn, angry, or depressed.
• Dropping one group of friends for another; being secretive about the new peer group.
• Loss of interest in old hobbies; lying about new interests and activities.
• Demanding more privacy; locking doors; avoiding eye contact; sneaking around.

Getting help for drug abuse and drug addiction

Finding help and support for drug addiction

• Visit a Narcotics Anonymous meeting in your area. See below.
• Call 1-800-662-HELP in the U.S. to reach a free referral helpline from the Substance Abuse and Mental Health Services Administration.

Recognizing that you have a problem is the first step on the road to recovery, one that takes tremendous courage and strength. Facing your addiction without minimizing the problem or making excuses can feel frightening and overwhelming, but recovery is within reach. If you’re ready to make a change and willing to seek help, you can overcome your addiction and build a satisfying, drug-free life for yourself.

Support is essential to addiction recovery

Don’t try to go it alone; it’s all too easy to get discouraged and rationalize “just one more” hit or pill. Whether you choose to go to rehab, rely on self-help programs, get therapy, or take a self-directed treatment approach, support is essential. Recovering from drug addiction is much easier when you have people you can lean on for encouragement, comfort, and guidance.

Support can come from:

•  family members
• close friends
• therapists or counselors
• other recovering addicts
• healthcare providers
• people from your faith community

When a loved one has a drug problem

If you suspect that a friend or family member has a drug problem, here are a few things you can do:

• Speak up. Talk to the person about your concerns, and offer your help and support, without being judgmental. The earlier addiction is treated, the better. Don’t wait for your loved one to hit bottom! Be prepared for excuses and denial by listing specific examples of your loved one’s behavior that has you worried.
• Take care of yourself. Don’t get so caught up in someone else’s drug problem that you neglect your own needs. Make sure you have people you can talk to and lean on for support. And stay safe. Don’t put yourself in dangerous situations.
• Avoid self-blame. You can support a person with a substance abuse problem and encourage treatment, but you can’t force an addict to change. You can’t control your loved one’s decisions. Let the person accept responsibility for his or her actions, an essential step along the way to recovery for drug addiction.