How do I know if I’m addicted to a drug?

You can suspect addiction when drug use shows a persistent pattern of impaired control, compulsion or craving, physical dependence (such as tolerance or withdrawal), and continued use despite harm.

In practical terms, impaired control often looks like using more than intended, being unable to stick to limits, or repeatedly trying to cut back without success. Compulsion may show up as strong urges, preoccupation with the drug, or using automatically in certain situations even when you planned not to. Physical dependence can involve needing more of the drug to get the same effect or experiencing physical or emotional discomfort when not using, depending on the substance.

Another key sign is continuing to use despite negative consequences. This can include worsening health, relationship conflict, problems at work or school, financial strain, or increased risk-taking, especially when you recognize the harm and still struggle to stop. Over time, addiction often narrows focus, with less interest or pleasure in activities that once mattered and more time spent using, recovering, or planning around use.

How these signs appear can vary widely. The type of drug, frequency of use, individual biology, mental health, stress, and life circumstances all influence how addiction develops and how noticeable it becomes. Some people recognize these patterns early, while others become aware only after consequences accumulate.

In context, addiction is best understood as a pattern that gradually reduces choice and flexibility over time, rather than a moral failing or a lack of willpower.