"Drugs like this would make good bio-weapons."
No it would not. Too expensive to make, and delivery requires IV administration, which makes it impractical as a BW.
It all depends on how the chemical can be broken down and absorbed by a person. We don't know if the chemical can be absorbed by the skin or lungs, or ingested in the stomach. To many unknown factors.
But we now know what happens if you turn a person's immune system on full blast.