# Methylcobalamin Can be ordered from Olympia Pharmaceuticals. When billed to the physician it can be shipped to the patient at wholesale ($64.10 for a 10ml vial at a dose of 5mg/ml). It is cold shipped overnight and needs to be refrigerated. I recommend a starting dose of 1,000 mcg (0.2 ml) per week. A 10ml vial will last a year at that dose.