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Will Phentermine Make You Fail a Drug Test?

Mark Halsey
Chief Editor of - Cleanbreak Recovery

Mark Halsey is a licensed therapist, founder, and chief editor of Clean Break Recovery. With over a decade of addiction treatment experience, Mark deeply understands...Read more

Are you considering taking the weight loss drug phentermine but are concerned that it could cause you to fail a drug test? Many people are unaware of the potential for false positives when taking this prescription drug. This article will outline the potential risks of taking phentermine and explain what you need to know about using this medication if you are concerned about drug testing.

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Can Phentermine Make You Fail a Drug Test?

Phentermine is a prescription appetite suppressant that is used to help people lose weight. It is a stimulant that affects the central nervous system and can be habit-forming. Because of its potential for misuse, phentermine is a controlled substance, and it can be detected in drug tests. Therefore, it is important to be aware of the potential for failing a drug test when taking phentermine.

How Phentermine is Used

Phentermine is most commonly prescribed to treat obesity. It is typically used in combination with diet and exercise to help people lose weight. It works by decreasing appetite and increasing energy levels. It is usually prescribed for short-term use, usually no more than 12 weeks at a time.

How Phentermine is Detected in Drug Tests

Phentermine is detectable in drug tests because it is a controlled substance. It can be detected in urine, saliva, and blood tests. Depending on the type of test being used, it can be detected for up to several weeks after the last dose. The cutoff level for a positive result is typically set at 300 ng/ml, which is higher than for other amphetamines.

Can Taking Phentermine Cause You to Fail a Drug Test?

If you are taking phentermine as prescribed and are not misusing it, it is unlikely that you would fail a drug test. However, it is possible that if you are taking a drug test at a sensitive cutoff level, you may test positive for phentermine. Therefore, it is important to inform your healthcare provider or the laboratory that is conducting the test that you are taking phentermine.

What to Do if You Fail a Drug Test Due to Phentermine

If you fail a drug test due to phentermine, it is important to talk to your healthcare provider. They can explain to the laboratory that you were taking phentermine as prescribed and were not misusing it. In most cases, this should be sufficient to clear up the issue.

What Happens if You Fail a Drug Test While Taking Phentermine?

If you fail a drug test while taking phentermine, the consequences will depend on the context of the test. For example, if you are taking a drug test for work, you may be disciplined or fired. If you are taking a drug test for a criminal justice system, you may be subject to further investigation. It is important to be aware of the potential consequences of failing a drug test while taking phentermine.

Few Frequently Asked Questions

What is Phentermine?

Phentermine is a prescription weight loss drug that is used as an appetite suppressant. It is a stimulant drug that works by affecting the central nervous system and suppressing the appetite. It is often prescribed to people who are overweight or obese and are trying to lose weight. It is sometimes used in combination with other medications, such as topiramate, to aid in weight loss.

What are the Side Effects of Phentermine?

Phentermine can have a variety of side effects, including increased heart rate, increased blood pressure, insomnia, restlessness, dry mouth, headache, dizziness, and constipation. It can also cause stomach upset, nausea, and vomiting. It is important to discuss any side effects with your doctor, as they can be serious.

Will Phentermine Make You Fail a Drug Test?

No, taking phentermine will not make you fail a drug test. Phentermine is a prescription drug, and is not typically included in drug tests. However, if you are taking other drugs in combination with phentermine, those drugs may be detected in a drug test.

What is a Drug Test?

A drug test is a test that is used to detect the presence of drugs in a person’s system. Drug tests typically involve collecting a sample of urine, saliva, or hair and then testing it for the presence of drugs. Drug tests are typically used to detect the presence of illegal drugs or to determine if a person is taking a prescribed medication.

What Drugs are Tested in a Drug Test?

The drugs that are tested in a drug test vary depending on the type of test being used. Commonly tested drugs include marijuana, cocaine, amphetamines, opiates, barbiturates, and some prescription drugs. The drugs that are tested can vary depending on the type of test that is being used and the purpose of the test.

Are Drug Tests Accurate?

Yes, drug tests are generally accurate. Drug tests use a variety of methods to detect the presence of drugs in a person’s system, such as urine tests, blood tests, saliva tests, and hair tests. The accuracy of the test depends on the type of test being used and the type of drug being tested.

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In conclusion, while phentermine can be a powerful and effective tool for managing weight, caution should be taken if you are subject to drug testing. Phentermine has the potential to cause a positive result for amphetamine in a drug test, so it is best to check with your doctor or employer before taking it to ensure that it will not interfere with any existing policies. Ultimately, the decision to take phentermine, and whether or not to risk a positive drug test result, is up to you.

Mark Halsey is a licensed therapist, founder, and chief editor of Clean Break Recovery. With over a decade of addiction treatment experience, Mark deeply understands the complex needs of those struggling with addiction and utilizes a comprehensive and holistic approach to address them. He is well-versed in traditional and innovative therapies, including cognitive-behavioral therapy, motivational interviewing, and mindfulness-based interventions.

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