The most chemically complex of all the vitamins, methylcobalamin is a water-soluble, organometallic compound with a trivalent cobalt ion bound inside a corrin ring which, although similar to the porphyrin ring found in heme, chlorophyll, and cytochrome, has two of the pyrrole rings directly bonded
Because injections are a medical treatment, they usually come with a prescription and ongoing monitoring
Even in perfectly administered shots, at times there may be a set of nerve fibrils that are closer together or more sensitive than others or at times even clumps of nerve fibrils that are present in knots
All of these costs can easily add up to over $1,000 to $2,000 or more over the year
However, it doesnt really matter what term you use (chewable tablet, lozenge, sublingual tablet, liquid, etc.) for maximum absorption the main idea is to hold the B12 in your mouth for as long as you can
Hence, an overdose is unlikely to happen