If you suspect that your teen is abusing drugs, talk to him or her. Avoid accusations. Instead, ask your teen what's going on in his or her life and encourage him or her to be honest.
If your teen admits to abusing drugs, let him or her know that you're disappointed. Enforce the consequences you've established and explain to your teen ways that he or she can help regain your lost trust, such as improving grades.
If you think your teen is involved in significant drug use, contact a doctor, counselor or other health care provider who specializes in drug problems.
Remember, it's never too soon to start talking to your teen about drug abuse. The conversations you have today can help your teen make healthy choices in the future.