Are you taking Phentermine, which is also known as Adipex, to lose weight? Perhaps you are taking a product that contains Phentermine as an active ingredient (examples include Zantryl, Fastin, Qsymia, and Ionamin). You need to get a prescription from your doctor in order to take these products, as Phentermine is similar to amphetamines and is considered a controlled substance.
Have you ever wondered if you would be flagged for Phentermine on a drug test if you are taking this prescription to shed pounds? Well, you aren’t alone. Keep reading to get the answer to this common question.
Would Phentermine Show Up on a Drug Test?
According to Verywell Mind, because Phentermine does have a structure that is a lot like that of amphetamines, if you were to take a urine test that screens for drugs, that test would indeed show positive results for amphetamines.
At that point, you would need what is known as a confirmatory test that will be able to prove that you merely took Phentermine, rather than another illegal substance. And, once the drug test shows that it was just a diet pill that caused the positive result, your original test’s result will be deemed a false positive. Phew!
Phentermine on a Drug Test: Results Depend on When You Took It
Generally, it’s likely that Phentermine will be detected in a urine drug test anywhere from one to four days after you have taken a dose of the medicine. If you take a blood test, it may be detectable for up to 24 hours. If your hair is tested, it can show up for up to a month.
However, the amount of time that Phentermine will remain in your body to show up in a test result will also depend on factors like the amount that you took, your metabolism, your age, and the amount of time that you have been using the product.
What Should You Do If You Have to Take a Drug Test?
If you have to take a drug test for any reason, and you are currently taking Phentermine to lose weight, there is no need to be afraid to disclose that information. In fact, it would be wise to let the individuals who ordered the drug test know that you do have a prescription for the weight loss pill known as Phentermine, and that it might lead to a false positive result.
As long as the testing lab knows that you are taking Phentermine, there can be less confusion from the get-go, and the results of your test can be interpreted more accurately. If they know that you’re taking the pills to lose weight, it’s less likely that they will make a big deal about Phentermine on a drug test.
Should You Be Worried About Phentermine on a Drug Test?
So, will you be flagged for Phentermine on a drug test? The simple answer is, yes, but it shouldn’t get you into any trouble if you are taking the product for weight loss and you have a doctor’s prescription.
{ 2 comments… read them below or add one }
I have been taking Phen on and off with my doctors prescription. It will be 5 days since I took 37.5 mg of Phen and my drug test for pre-employment will be tomorrow, will it show up in my urine?
how long will a 30 day dose of phentermine show on urine test