Stephen Wolstenholme <
eas...@googlemail.com> wrote:
> On Fri, 17 May 2013 02:50:18 +0100, Marc Wilson
> <
E-0C0013...@cleopatra.co.uk> wrote:
>
>> In uk.misc, (Patrick Hardlentil) wrote in
>> <
86bo8aw...@dogslobber.demon.co.uk>::
>>
>>>
>>> And Marc Wilson <
E-0C0013...@cleopatra.co.uk> was like:
>>>
>>>> There's another chemical you can add to paracetamol that prevents the
>>>> liver damage. I can't offhand remember what it's called. In some other
>>>> countries, it's routinely added to tablets, and in a few it's mandatory.
>>>>
>>>> But the UK pharma industry have campaigned against its use.
>>>
>>> You must admit, that sounds a bit man-in-the-pubby.
>>>
>>> But I have no facts to set against it.
>>
>> If I can remember what the damned stuff is called, or pick the right
>> phrase to Google it, I'll let you know.
>>
>> Ah!
>>
>> Methionine. That's the stuff.
>>
>>
http://en.wikipedia.org/wiki/Paracetamol_poisoning#Treatment
>>
>> There's a proprietary drug which combines paracetamol and methionine,
>> called Paradote.
>
> Methionine is difficult to double blind test because it would require
> some people to get liver damage. The drug companies will not risk such
> testing. It easier and cheaper just to put a warning on packs of
> Paracetamol.
There have been trial proposals in the past, for paracetamol
co-administered with acetylcysteine. Methionine, used in Paradote, is an
older "antidote" for paracetamol poisoning, Acetylcysteine has been the
therapy of choice for what feels like forever - 1970s onwards. I suspect
they chose Methionine because it's not as vile tasting as Acetylcysteine.
These trials have not foundered on ethics, button cost. You don't have to
watch someone suffer liver damage, it's possible to assess the efficacy of
the drug at therapeutic doses. It's possible to quantify serum paracetamol
and to determine biochemical markers of liver toxicity (AST, ALT and
bilirubin) at doses below a lethal dose.
Anyway, the real reason for not doing anything is because makers want to
sell cheap to make tablets at as high a price as possible while keeping
costs to a minimum. If rationality came into it paracetamol would be
banned. It kills more people from acute liver failure than alcohol.
--
<•DarWin><|
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