“…( 10 , 23 ), hemolysis in glucose-6-phosphate dehydrogenase (G6PD) deficiency, hypertension, and headache ( 9 , 10 ). The side-effect profile of hydroxocobalamin includes chromaturia, hypertension, erythema, headache, nausea, and rash, in addition to a false laboratory elevation of hemoglobin, creatinine, glucose, bilirubin, and alkaline phosphatase ( 10 , 12 , 24 ). Therefore, selection of antivasoplegic therapy must account for both patient and drug factors.…”