Most important is that the faster you act, the sooner your loved one can start to become well again. The user is preoccupied with getting high. Less control or choice. Rituals for using are established. The user gets and uses drug paraphernalia, becomes ingenious about hiding use.
Consequences become more serious.
The user is ill more often. Family and job problems get worse. The user makes repeated promises to quit or cut down. He or she may start to have trouble with the law. Family and friends are concerned.