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A persons risk of alcohol-related cancers is influenced by that persons genes, specifically the genes that encode enzymes involved in metabolizing (breaking down) alcohol (27)

8 Crack cocaine does not involve a purification process and is usually less pure, carrying along with it any additives and dilutants alongside as a result, with only about 40% (on average) of it being pure

Ketoconazole Ketoconazole has been reported to decrease the metabolism of certain corticosteroids by up to 60%, leading to increased risk of corticosteroid side effects

Also, Kool was notoriously targeted to African-Americans, as were many menthol cigarettes