How do I know if someone has a drug problem?

How do I know if someone has a drug problem?

There are questions people can ask to gauge whether or not a person has a drug problem. These may not mean that someone is addicted, but answering yes to any of these questions may suggest a developing problem, which could require followup with a professional drug treatment specialist. These include:

1. Have you ever ridden in a car driven by someone (including yourself) who had been using alcohol or drugs?
2. Do you ever use alcohol or drugs to relax, to feel better about yourself, or to fit in?
3. Do you ever use alcohol or drugs when you are alone?
4. Do you ever forget things you did while using alcohol or drugs?
5. Do family or friends ever tell you to cut down on your use of alcohol or drugs?
6. Have you ever gotten into trouble while you were using alcohol or drugs?