What are general symptoms of drug addiction (opioid)?

Abuse and more: Addiction is elevated narcotic abuse that becomes a craving, with compulsive need to use opioids and often self-destructive behavior.

Pupils narrow: The eye pupil will be narrow in people who use opioids. The other signs drowsiness.

Craving for drug: An intense craving for the drug of choice that becomes a greater focus in ones life than friends, family, or work.

Addiction: A harmful pattern of use characterized by tolerance, withdrawal, using more of the substance than intended, persistent desire or unsuccessful attempts to cut down or stop using, significant periods of time spent using or obtaining the substance at the expense of other major life responsibilities, and continuing to use despite the knowledge of significant adverse effects on your life.