Is phentermine an amphetamine?

Sort of. It is closely related to amphetamines, and has a similar nucleus, as do many naturally occurring chemicals in the body (like adrenaline) as well as other drugs, including many decongestants and the antidepressant bupropion (wellbutrin or zyban). It will show up in drug screens as amphetamine, but definitive testing will show that it is phentermine.
Yes. It is an amphetamine but has significantly more potential and dangerous side effects than those used for ADHD.
Phentermine. It is a Psychostimulant drug of the Phenethylamine class used for weight control. Its pharmacology is similar to Amphetamine.

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