The signs of drug use depend on the drug and the person
using the drug. Behaviors that may be signs of a drug use problem include:
Changes in sleeping or eating habits, less
attention to dressing and grooming, or less interest in sex.
and down moods, a mood or attitude that is getting worse, or not caring about
Anger toward others or treating others
Sneaky behavior, lying, or stealing.
relationships, or relationships that are getting worse.
problems at work or school, or problems with the law.
friends and activities, finding new friends, and not wanting old friends to
Having these signs doesn’t always mean a person is using
drugs. The behavior could be because of work or school stress, or it could be a
sign of depression or another medical problem. But behavior
changes like these are common in people who misuse drugs.
signs of drug use and dependence include:
Red eyes, a sore throat, a dry cough, and
Needle marks on the arm or other area of the
Small, “pinpoint” pupils in the eyes.
weight without trying to, or not feeling like eating.
Changes in sleep behavior, such as not sleeping as well.
ByHealthwise Staff Primary Medical ReviewerWilliam H. Blahd, Jr., MD, FACEP – Emergency Medicine Adam Husney, MD – Family Medicine Martin J. Gabica, MD – Family Medicine Kathleen Romito, MD – Family Medicine Specialist Medical ReviewerH. Michael O’Connor, MD – Emergency Medicine Christine R. Maldonado, PhD – Behavioral Health