Like most drugs, a small and occasional dose of marijuana has very few bad side effects. In larger doses, over the long-term, marijuana results in psychological and behavioral dependence. This means that the individual may rely on cannabis to get through something, to cope, to relax, or to sleep. They may also panic if they don’t have the drug, may spend all of their time and money acquiring or using it, and may pathologically lie, hide usage, or use the drug in ways that are not safe (before driving, before work).
In any of these cases, it is highly likely that your loved one has a problem. And, while the current trend is for individuals to avoid treatment, the National Institutes of Health claim that seeking rehab treatment and mental health treatment following a Cannabis use disorder can greatly improve long-term outcomes.