When you are putting manure on your gardens or pastures, sooner or later it seems like you will get manure from animals that have just be given worming medications - But I can't find any information about this. :help: I'm wondering: If you get manure contaminated with worming meds, how long does it take for meds to break down so it won't harm your earthworms? Is there anything you can do to accelerate the breakdown of those chemicals, like heat composting, maybe? How long after worming an animal does it take until their manure is clear again? Anyone out there have some ideas?