A member asked:

How long will the over-the-counter diet pill fastin (phentermine) test positive in you urine?

A doctor has provided 1 answer
Dr. Donald Alves answered

Specializes in Emergency Medicine

Good luck!: I show the generic (phentermine) still as a prescription-only medication. So, whatever is in the over-the-counter version is not likely its true namesake, or potentially in a very reduced strength--either of these may not give you the results you are hoping for, and toxicity risk. Phentermine can show in urine drug screen for 10-14 days per internet resources.

Answered 6/30/2014

5.1k views

Thank

Related Questions

A member asked:

Could phentermine give you a false positive on a urine drug screening

11 doctors weighed in across 3 answers