Dependent or habitual use of various narcotic, stimulant, or mind influencing drugs for other than medical purposes. Includes either or all of physical, emotional, or mental addiction. Not essentially a sickness but a sin problem causing enslavement, sickness, etc. Also, see section on Alcohol.
Jesus Christ has done something about this problem. He came to liberate the captives and to enable people to gain self-control, a fruit of the Holy Spirit (Gal. 5:22-23)