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New Nerve Gas Antidotes

Posted by Zonk on Fri Nov 30, 2007 01:23 AM
from the i've-never-had-the-nerve dept.
SoyChemist writes "Scientists from Korea and the Czech Republic have discovered new drugs that can counteract the chemical overload caused by nerve gas. All of the experimental medications belong to a family of chemicals called oximes. Those molecules reactivate the enzyme that is damaged by the chemical weapons. Last year, the FDA approved the first combined atropine and oxime auto-injector for use by emergency personnel. Israel has been providing them to their citizens since the first Gulf War."
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  • by lecithin (745575) on Friday November 30 2007, @01:28AM (#21528853)
    "Last year, the FDA approved the first combined atropine and oxime auto-injector for use by emergency personnel."

    I don't know the history, but in 1987(and certainly earlier) the US military had this for the 'troops'. It was in 2 injectors, not one.

    atropine and 2 pam chloride (a oxime)
    • In Australia you can get atropine inhalers for extraordinary cases of asthma. Good for snake bite too.

      Although I used to carry a bottle of whiskey for snake bite. And two snakes.

      • Re: (Score:3, Informative)

        A typical dose for atropine is 0.4 mg and is that very useful for colds and before surgery or dental work becuase it dries you up pretty good and ounces stuff isn't running down your throat; for nerve gas antidote that typical dose of atropine is 2.0 mg and it's not unusual for a second dose to be give 10 minutes later if the patients heart rate isn't at 120 and is very usful for keeping gallons of stuff from running down your thorat. We also classify nerve agent as reversable and irriversable i.e. a trver
    • by Novae D'Arx (1104915) on Friday November 30 2007, @01:42AM (#21528921) Homepage
      Like you said - Pralidoxime and Atropine injectors are extremely old-school for the US military. Although I'm happy that there are new drugs for treating nerve gas poisoning, TFA makes it sound like the "new" drugs are still completely untested - only on petri dish models, if I read it correctly. So, while there is promise, there are no human or animal efficiency results yet, no toxicity tests - all kinds of things are needed to prove that these new molecules are appropriate to replace the old ones.

      That's the thing about new drugs - they look wonderful and promising for a while in the lab, then you stick them in a monkey and his testicles melt or his hair falls out. Oops - back to the drawing board.

      Anyway, I'm skeptical but hopeful. I've had biochem weapons training in the Army, and nerve gases are effing nasty. More power to providing more survivability...
      • Re: (Score:3, Insightful)

        The FDA isn't going to approve it without sufficient testing. Although there's no way they exposed a human to nerve gas and then used these drugs to see if it worked, there's no way that kind of test will EVER happen. The best they can do is what they've already done and that was sufficient to get it approved.

        Also, these drugs don't need to be tested as thoroughly as other drugs that would be taken on a normal basis. For example, the Advil you buy at the store had better damn well be tested enough that y
        • And of course if it kills your family gets to sue the drug company, even though you were going to die anyway. Win/win.
      • Re: (Score:3, Informative)


        then you stick them in a monkey and his testicles melt or his hair falls out

        Military members are statutorily barred from suing the government for injuries arising in the line of duty. See here. [senate.gov]

        Government contractors are also immune from products liability suits, so long as the product in question was designed according to military specifications. See here. [shu.edu]

        Things the recruiter doesn't tell you... Hopefully the government tests carefully before using!
      • Re: (Score:3, Informative)

        Exactly - every doctor learned this back in medical school; atropine is a temporary fix (anti-cholinergic) and pralidoxime allows regeneration of AChesterase to some degree so your body can naturally remove it. It's a little bit of a juggling act, and needs monitoring for levels. Most (civilian) MDs see something like this with pesticide spray (farmer inadvertently sticks his hand in liquid "nerve gas" organophosphate bug spray, etc.) not chemical attacks, but we all get training in this (standard emergen
      • by dirtsurfer (595452) on Friday November 30 2007, @03:34AM (#21529535) Journal
        Hey man, you want a hit of this? This stuff'll melt the testicles off a monkey
    • I don't know the history, but in 1987(and certainly earlier) the US military had this for the 'troops'. It was in 2 injectors, not one.

      Now it's in one. That's what's new.

  • So, will this work on participants in the OS Flame Wars? They seem to be acting like they were hit with nerve gas over at "Leopard As The New Vista [slashdot.org] right now. Maybe they just need some tranquilizers.
  • better explanation (Score:4, Informative)

    by wizardforce (1005805) on Friday November 30 2007, @01:50AM (#21528961) Journal
    Pralidoxime has been used with Atropine for a long time it seems, Atropine lessening the effects of acetylcholine its self and Pralidoxime is sacrificed to reactivate acetylcholine esterase [which helps remove acetylcholine after it is done with its job]
    http://en.wikipedia.org/wiki/Pralidoxime [wikipedia.org]
  • by Anonymous Coward
    Yeah. I saw this in that "Rock" movie about a bazillion years ago where Sean Connery pretended he wasn't British and Nick Cage pretended he could act.
  • by YU5333021 (1093141) on Friday November 30 2007, @02:32AM (#21529189) Homepage
    I'm being serious here... In the case that I ever end up in a public space where it becomes obvious that a nerve gas has been released, (and there is no clear way of getting out ie. subway system, sports venue...) I would take off one of my socks and piss on it.

    ???????

    This was commonly done in WWI during nerve gas attacks. With lack of gas masks, the best way to protect yourself was to breathe through a cloth soaked in ammonia. Piss being the easiest source of it.

    The modern gases may be way more advanced than what was used in early 20th century, so my approach may come across as dumb, but if they find my dead body sucking on a piss stained sock, I won't care much. I'll be dead.
    • Re: (Score:2, Informative)

      Many nerve agents are absorbed through the skin, though getting a lungful won't do you any favors either. In the event of aerial disbursement, you'd have better chances with a poncho, rain coat, or even wearing a garbage bag. Unfortunately for you, in the event people are still able to move (and react), you would likely be knocked over and trampled in the resulting panic while trying to get your sock off.
    • by ArcherB (796902) * on Friday November 30 2007, @02:45AM (#21529243) Journal
      I'm being serious here... In the case that I ever end up in a public space where it becomes obvious that a nerve gas has been released, (and there is no clear way of getting out ie. subway system, sports venue...) I would take off one of my socks and piss on it.

      If you really worried about it, you could just carry around a water filter. They make small ones for sports bottles, although, I don't know how easy they are to breathe through. Either way, they seem to have the same stuff in them as modern gas masks. It may work in a pinch and no one runs over your ass while you are standing there DIH, too panicked to piss on a sock.

    • Re: (Score:3, Informative)

      ammonia was "effective" for preventing poisoning from previous gas attacks because a lot of these gases were acidic/electrophillic. Phosgene in particular would hydrolyze to CO2 and hydrochloric acid in your lungs thus causing you to drown in your own lung fluids. Ammonia is a base thus neutralizing a lot of the hydrochloric acid produced. Urine contains a number of nitrogeneous compounds one of which is Urea which hydrolyzes into Ammonia and CO2.
    • Re: (Score:2, Insightful)

      Ammonia. One ppm you smell it. two ppm you're dead.

      I'll take my chances with the nerve gas.
      • Ammonia. One ppm you smell it. two ppm you're dead.

        I'll take my chances with the nerve gas.
        I'm sure this isn't the whole story. Perhaps this assumes several hours of exposure? A friend of mine cleans his floors with ammonia, and it's overpowering. I'm reasonably sure that the quantity in the air is well over twice the minimum that would be necessary for me to smell it. But his family is alive and healthy. This can't be true, or my friend would be dead.
    • by bagsc (254194) on Friday November 30 2007, @06:18AM (#21530279) Journal
      Piss won't help with any nerve agent. That tactic was partly effective against chlorine gas, which is soluble in water, so any water soaked rag will partly protect you. I say 'partly,' because even if your lungs and mucous membranes in the mouth and nose were protected in low concentrations of the gas, your eyes and skin are not. If it's a high concentration, you can see and smell it coming, so you get a chance to run. Of course, if you're stuck in a high concentration of chlorine gas, you're pretty much boned.

      Oh, and the ammonia neutralizing chlorine is also not true.
      http://en.wikipedia.org/wiki/Poison_gas_in_World_War_I [wikipedia.org]
  • Nothing new here (Score:3, Informative)

    by mysterious_mark (577643) on Friday November 30 2007, @04:09AM (#21529693)
    The US Military has been using Atropine auto injectors since the 70's, but there's no requirement for FDA approval. There's also a auto injector of Pam-2 chloride to be used to neutralize the toxicity of the Atropine. The Atropine and Pam-2 chloride injectors are issued in a box of two each that each soldier/sailor/marine carries when at 'MOPP' level anticipating a chemical attack or training for such. Anyone whose been through basic training or who has trained with a combat related unit probably has fond memories of long hours spent in MOPP suites, gas masks, and practice with the fake injectors for training. The only difference I see with this new antidote is that's its FDA approved for civilian use. Mark
        • If these lands are so valuable as religious resources, then every single occupier of that land would have had to keep the surrounding countries at bay for the entire occupation. Since that is clearly not the case, given the long periods of relative peace prior WWI, I don't see how having "key cities" is in any way apropos to the conversation unless you are also arguing that Israel is in some way preventing foreign pilgrims from accessing these monuments.

          Israel has been conquered 34 times last count because

          • Re: (Score:3, Insightful)

            The whole thing is a wonderful ball of insanity, as everybody thinks that their own interpretation of the Invisible Friend in the Sky wants them to occupy some particular patch of dirt.

            If anyone's technically to blame for the problems in the Middle East, it's the Jews -- the ancient Jews, who were the first to invent the eternally-PMS'ing, cranky, smite-happy, horse-blinders-distributing warmongering Jehovah.

            The world would be a much more peaceful place if the three Abrahamic religions vanished tomorrow.

            • It's not about religion or about not forgetting the past. It really isn't. There is an ongoing situation that remains today. We have now a whole generation of displaced people who grew up in refugee camps. The palestinian people are embargoed with all entrances and exits controlled by Israeli forces. Their government ministers can't even visit another country without Israel's permission and trade and supplies have been blocked as a means of punishing the Palestinian people. When the Palestinian people elec