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Thread: AutoInducers

  1. #1
    lmcder is offline Active Member
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    AutoInducers

    Are there other drugs, which like carbamazepine are autoinducers?
    Im nearing the end of my pre reg year and only found out about this property of carbamazepine YESTERDAY!! Please educate me!!!!!
    Regards, L X

  2. #2
    paul2008's Avatar
    paul2008 is offline Registered Pharmacist
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    Re: AutoInducers

    What about ethanol?

    Quote Originally Posted by lmcder View Post
    Are there other drugs, which like carbamazepine are autoinducers?
    Im nearing the end of my pre reg year and only found out about this property of carbamazepine YESTERDAY!! Please educate me!!!!!
    Regards, L X
    Real stupidity beats artificial intelligence every time.
    (T. Pratchett)

  3. #3
    johannes's Avatar
    johannes is offline Apothecary
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    Re: AutoInducers

    What about smoke?

    Quote Originally Posted by paul2008 View Post
    What about ethanol?

  4. #4
    johannes's Avatar
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    Re: AutoInducers

    What about smoke?

  5. #5
    lmcder is offline Active Member
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    Re: AutoInducers

    Barbiturates - ive been informed are another one!!

  6. #6
    Pharmanaut's Avatar
    Pharmanaut is offline Newly registered in 1981
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    Re: AutoInducers

    Quote Originally Posted by lmcder View Post
    Barbiturates - ive been informed are another one!!
    Rifampicin might be as well.
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  7. #7
    pharmatron is offline Frequent Poster
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    Re: AutoInducers

    Quote Originally Posted by lmcder View Post
    Are there other drugs, which like carbamazepine are autoinducers?
    Im nearing the end of my pre reg year and only found out about this property of carbamazepine YESTERDAY!! Please educate me!!!!!
    Regards, L X
    I remember hearing about this in Uni pharmacology/kinetics lectures. Here's the relevant bits cut and pasted from my old notes.

    • Drugs that stimulate hepatic microsomal enzyme production may stimulate their own metabolism
    • This process is known as ‘self-induction’ or ‘auto-induction’
    • In some cases, this process explains the phenomenon of tolerance
    • Examples of drugs that induce their own hepatic metabolism include:
    o Carbamazepine (Anticonvulsant)
    o Diazepam (Benzodiazepine)
    o Glutethimide (Hypnotic sedative)
    o Glyceryl trinitrate (Vasodilator)
    o Meprobamate (Anxiolytic)
    o Phenobarbital (Barbiturate)
    o Phenylbutazone (NSAID)
    o Phenytoin (Antiepileptic)
    o Tolbutamide (Sulphonylurea)

  8. #8
    lmcder is offline Active Member
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    Re: AutoInducers

    Thankyou very much, thats brilliant, X

  9. #9
    Jeff Guest

    Re: AutoInducers

    Quote Originally Posted by pharmatron View Post
    Here's the relevant bits cut and pasted from my old notes.
    How old? Some of these drugs are long gone

    Jeff

  10. #10
    pharmatron is offline Frequent Poster
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    Re: AutoInducers

    Quote Originally Posted by Jeff View Post
    How old? Some of these drugs are long gone

    Jeff
    I know...and the notes are only a few years old. I suspect they were out of date when they were issued to us. Some of the older lecturers are very good at delivering the science and getting students to understand the principles, but their notes aren't always up to date with current clinical practice.

    However, there are a few useful examples and the pharmacokinetic principles remain the same.

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