[PowderMonkey]

Death toll is sure to climb as the hours pass. A lethal additive to these explosives is a liberal coating of rat poison to the shrapnel. It inhibits the blood's ability to clot. Thus, severely wounded victims slowly bleed out and die.

[armydoc]

Death toll is sure to climb as the hours pass. A lethal additive to these explosives is a liberal coating of rat poison to the shrapnel. It inhibits the blood's ability to clot. Thus, severely wounded victims slowly bleed out and die.

Sorry, no. Warfarin (coumadin) in its various forms indeed is rat poison. It is also used as a therapeutic anticoagulant in humans. The thing is, it works by inhibiting the liver's production of certain clotting enzymes. This takes 5-7 days of successive doses of the drug before it becomes therapeutic. Even if there was some kind of "controlled release" mechanism coating the imbedded fragments (doubtful) and even if a large enough dose could be delivered via these fragments (doubtful) and even if systemic absorption could be maintained for 5-7 days in these traumatic, necrotic wounds (doubtful), at 5-7 days bleeding is not the concerning issue with anyone not yet surgically treated. Infection is the main problem.