When drug users begin by using less potent and addicting drugs such as marijuana, and increase in potency to drugs such as cocaine and heroin, this is referred to as the ________________.

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The Answer of When drug users begin by using less potent and addicting drugs such as marijuana, and increase in potency to drugs such as cocaine and heroin, this is referred to as the ________________.

When Drug Users Begin by Using Less Potent and Addicting