Phentermine FAQs

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General Phentermine Questions

Is phentermine an amphetamine?

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No, phentermine is not an amphetamine. However, the active ingredient in phentermine (phentermine HCl) has a chemical structure like amphetamines, so the medication can cause a false positive on 5-panel drug screens.

To read more about phentermine’s active ingredient, please click here.

To read more about false positive on drug tests, please click here.