Alcohol addiction and Drug addiction

Alcohol addiction noun - Habitual intoxication; prolonged and excessive intake of alcoholic drinks leading to a breakdown in health and an addiction to alcohol such that abrupt deprivation leads to severe withdrawal symptoms.

Drug addiction and alcohol addiction are semantically related. In some cases you can use "Drug addiction" instead a noun phrase "Alcohol addiction".

Drug addiction noun - An addiction to a drug (especially a narcotic drug).

Alcohol addiction and drug addiction are semantically related. Sometimes you can replace phrase "Alcohol addiction" with "Drug addiction", this phrases are similar.