10-25mg q6-8hrs
Known quantity ingested: Give IV<unk>  1:1 with amount ingested, up to 5 grams
Unknown quantity ingested: 5 grams
IV Infusion rate is 0.5 g/min until the seizures stop or the maximum dose is reached. Remainder of dose infused over 4 to 6 hours
Pyridoxine
Folic acid
Niacin
Thiamine
Leucovorin
Vitamin B12
Trientine
Hydroxocobalamin