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Doctor insights on: How Long Does Phentermine Stay In Your System

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How long does phentermine stay in your system for a salvia drug screen ?

How long does phentermine stay in your system for a salvia drug screen ?

3 days: Stimulant similar to amphetamines, is a controlled substance and drug of abuse. time in saliva tox screens, is about 3 days, depending on your overall health, what other meds you take (legal or illegal) See https://www.erowid.org/psychoactives/testing/testing_info1.shtml ...Read more

Dr. Gail Altschuler
399 doctors shared insights

Phentermine (Definition)

Phentermine is been around for about 60 years. Phentermine is an appetite suppressant the bariatrician in the winter of 2008. Has a article gives a great description of the medication phentermine. I have used Phentermine over the last nine years without any complications whatsoever. We only give a half of a 37.5 mg ...Read more


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How long would phentermine stay in your system?

How long would phentermine stay in your system?

About 14 days: Is how long internet resources suggest it might appear in a urine drug test. If it is being used with legitimate prescriber, then even a positive will just require verification to resolve. Good luck. ...Read more

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How long does phentermine stay in system?

How long does phentermine stay in system?

Phentermine: This medication is generally dosed once to twice daily. Clinical effect generally gone in twenty four hours. Blood levels generally depleted in five half lives believe 60 hours. ...Read more

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How long does half of one 37.5 mg phentermine tablet stay in your system which would show up on a drug test.

How long does half of one 37.5 mg phentermine tablet stay in your system which would show up on a drug test.

Half life is 20h: The drug's half life is 20 hours, meaning that after 20 hours, half of the dose has been eliminated. 20 hours after that, 3/4 of the dose has been eliminated and 20 hours after that 7/8 of the drug has been eliminated. At 80 hours virtually all of the drug has been eliminated. Depending on sensitivity of urine test you should allow 60-80 hours for elimination. Thanks for trusting HealthTap! ...Read more

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How long does it take for phentermine 37.5 to get out of your system?

How long does it take for phentermine 37.5 to get out of your system?

Phenteramine: It's half life is about 16-30 hours range. You need 5 half life to pass to tell it is all gone out of your system. Then in 150 hours after the last dose. ...Read more

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How long does phentermine take to absorb in the urinary system so it will show in a urine drug test?

How long does phentermine take to absorb in the urinary system so it will show in a urine drug test?

Five days: Phentermine adult half-life is variable between 7 to 20 hours. It takes approximately 6 half lives for a drug to be eliminated from your system. 20*6/24=5 days. The Phentermine will stay in your system for approximately 5 days. ...Read more

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Hi Doctor :) I took Phentermine 15mg for the first time today. How long does it stay on my system? I'm having a drug test in 3 days. Thanks

Hi Doctor :) I took Phentermine 15mg for the first time today. How long does it stay on my system? I'm having a drug test in 3 days. Thanks

Doctor prescribed?: I am hoping that you are using this medication because it was prescribed to you by a physician for obesity. If you used this medication for any other reason, or if it was not prescribed for you but someone else, using it is illegal and don't do it again. If you are overweight or obese and want to lose weight, talk to your doctor. Share a list of all your medications when you are tested for drugs ...Read more

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How does phentermine get out of your system?

How does phentermine get out of your system?

Mostly kidneys: It is excreted 70-80% in urine unchanged, minimally through the liver. ...Read more

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How long does phentermine stay in your urine?

How long does phentermine stay in your urine?

25 Hour half life.: Metabolites of sympathomametics can stay in the blood stream for several days. ...Read more

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How long does it take for phentermine to become effective?

How long does it take for phentermine to become effective?

Phentermine onset: Most patients can feel an effect of decreased hunger about 20-30 minutes after taking a dose of phentermine. ...Read more

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Is it bad to use phentermine 37.5 for long term use? I've been taking it for 6 years

Is it bad to use phentermine 37.5 for long term use? I've been taking it for 6 years

Probably yes: The newest obesity medicine is called qsymia (phentermine and topiramate). It is a combo of Phentermine plus topiramate, but a lower dose. It is taken chronically for a year. The dose you are on should be limited to 3 months. Must watch for blood pressure and pulse issues. Your doctor shoul be checking these. You might consider 3 months on, then 3 months off, then back on. ...Read more

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How long does side effects of phentermine typically last?

How long does side effects of phentermine typically last?

Phenteramine: Phenteramine is a less than 24 hour medication otherwise you would be up all night! any adverse problems should go away by the next day - unless you keep taking the medication! obviously if something is wrong and persists you should see your doctor! ...Read more

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How long does it take fastin (phentermine) to get out of your urine?

How long does it take fastin (phentermine) to get out of your urine?

Hard to tell...: It's hard to tell when there won't be any more medication in the body or urine of a particular individual. The half-life of a drug can vary from person to person. Some websites say the half-life of Phentermine (fastin) is somewhere around 16-31 hours. If a half-life is 24hr (1 day), that means after 1 day, half the drug is still in the body (then 1/4, 1/8, 1/16, 1/32, ...1/64 remains after 6 days). ...Read more

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Dr. Jeffrey Wint
278 doctors shared insights

Ionamin (Definition)

Ionamin is an appetite suppressant which is a kind ...Read more


Dr. Michael Kleerekoper
289 doctors shared insights

Fastin (Definition)

Fastin is an appetite suppressant which is a kind ...Read more