Includes 2 agencies outside the US.

Indication	Spread: box is the middle half, dot means most agree	Range
Nerve agent exposure Adult		Most use 600 mg range 600 to 1800 mg, n=46
Pediatric		600 to 1800 mg median 600, n=8
Pediatric, weight-based		15 to 30 mg/kg median 15, n=27
Organophosphate poisoning Adult		600 to 1800 mg median 600, n=37
Pediatric, weight-based		12.5 to 50 mg/kg median 20, n=22
Other Adult		600 to 1500 mg median 600, n=28
Pediatric		All use 600 mg n=6
Pediatric, weight-based		10 to 50 mg/kg median 20, n=20

Doses far off from what other protocols give are likely misreads, so they are left out until checked. How that works.