Can we be addict with a substance and having the desired effect but without second effect ?

or:Can we be addict with a substance and having the desired effect but without second effect ?or:It depends on the substance.For ex;I'm addicted to t

or:Can we be addict with a substance and having the desired effect but without second effect ?


or:It depends on the substance.For ex;I'm addicted to the smell of gas,because it has nicotine.I know I didn't fully this question,but it depends on the substance.

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