Does Phentermine Show Up on a Drug Test

How Long Does Adipex Stay in Your System?

Adipex 37.5 mg
Adipex (phentermine) is a diet pill. U.S. Drug Enforcement Administration

Several factors come into play when trying to determine how long Adipex is detectable in the body. Adipex - which is phentermine - can be detected for a shorter time with some tests, but can be "visible" for up to three months in other tests.

The timetable for detecting Adipex in the system is also dependent upon each individual's metabolism, body mass, age, hydration level, physical activity, health conditions and other factors, making it almost impossible to determine an exact time Adipex will show up on a drug test.

The following is an estimated range of times, or detection windows, during which Adipex can be detected by various testing methods:

How Long Does Adipex Stay in the Urine?

Adipex can be detected in the urine for 1-2 days

How Long Can Adipex Be Detected in Blood?

There is currently no data available concerning the detection of Adipex in blood tests.

How Long Can a Saliva Test Detect Adipex?

A saliva test can detect Adipex for up to 1-2 days

How Long Can a Hair Test Detect Adipex?

Adipex, like many other drugs, can be detected with a hair follicle drug test for up to 90 days.

It Is Important to Avoid Adipex's Severe Side-Effects

Adipex is an anorectic (diet pill) and is used to speed weight loss. It is usually prescribed for people who are exercising and eating a low-calorie diet. It decreases the person's appetite.

Some of the serious side-effects of Adipex include:

If you think someone has overdosed on Adipex, call the poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call 9-1-1.


American Association for Clinical Chemistry "Drugs of Abuse Testing." Lab Tests Online. Revised 2 January 2013.

LabCorp, Inc. "Drugs of Abuse Reference Guide." Accessed March 2013.

OHS Health & Safety Services. "How long do drugs stay in your system?." Accessed March 2013.

National Institute on Drug Abuse. "Phentermine." Drugs, Herbs, and Supplements. January 2013

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