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Doctor insights on: How Long Does Allegra Stay In System When Drug Test

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Allegra (fexofenadine) -d 12 hour allergy & congestion can show up on a drug test as amphetamine?

Allegra (fexofenadine) -d 12 hour allergy & congestion can show up on a drug test as amphetamine?

Possible: Since the Pseudoephedrine in the d is often used to manufacture amphetamine, i would guess that it can show up in a blood test. I would advise you to stay off of any decongestants if you are subjected to random drug test until i can look this up. ...Read more

Dr. Alan Wartenberg
544 doctors shared insights

Drug Testing (Definition)

It is the process of examining body fluids or tissue for evidence of chemicals taken or not taken. It does not diagnose addiction however this a ...Read more


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Well fexofenadine HCl 60 mg show up on drug test as something not allowed?

Well fexofenadine HCl 60 mg show up on drug test as something not allowed?

It shouldn't: Most employers will be assaying for substances of abuse when they do drug screens: substances such as alcohol, marajuana, cocaine, opioids, amphetamine, etc. The fexofenadine wouldn't be included on such a list. ...Read more

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How long before a 2mg lorazapam is out of your system enough to not show up on a saliva drug test?

How long before a 2mg lorazapam is out of your system enough to not show up on a saliva drug test?

After 10 days: It will show in saliva from 1 to 10 days and will not show after that But will show in urine from 1 to 6 weeks and In hair follicle test upto 90 days ...Read more

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What to do if I have a drug test monday I was planning on drinking 6-8 shots how long will the alcohol stay in my system?

What to do if I have a drug test monday I was planning on drinking 6-8 shots how long will the alcohol stay in my system?

I am more concerned: with your binge drinking, and the damage it will do to your liver, your stomach, your heart and to your LIFE than I am with your employment test. Most drug-testing does not involve alcohol, unless the person is known to have an alcohol problem and is required to remain alcohol free. If this is the case, YOU HAVE A BIG PROBLEM. There are tests now for alcohol that can detect it for many days. ...Read more

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I just smoked hash for the first time yesterday. How long would that stay in my system in case I have to do a drug test for work?

I just smoked hash for the first time yesterday.  How long would  that stay in my system in case I have to do a drug test for work?

See below: Well, that was stupid to do when you know there's a drug test coming or possible. Regardless, it may last between 3 and 7 days in the system. If for employment, if it is positive, they will do a confirmatory test to look for specific substances. There's really no way to fool the system without causing suspicion of tampering (e.g. Blue dye in toilet). ...Read more

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I have to get cotinine/nicotine out of my system for a drug test that is work related. How long until it's out of my system? Can I help flush it out?

I have to get cotinine/nicotine out of my system for a drug test that is work related. How long until it's out of my system? Can I help flush it out?

Forgive my frankness: Flushes do not work. You can lie and claim that a low level is passive smoke. Or you can be honest and get in a program to stop for real. The latter will save your life and health. Go for it. ...Read more

Dr. Thomas Fiala
334 doctors shared insights

Fexofenadine (Definition)

Fexofenadine, previously marketed under the brand name allegra, is an antihistamine similar to ...Read more


Dr. Michael Finkelstein
358 doctors shared insights

Allegra (Definition)

Allegra is a non-sedating antihistamine which is a kind of antihistamine type drug (common ...Read more