Typically, methylcobalamin and cyanocobalamin treat vitamin B12 deficiencies, but other uses may exist. Both forms are considered generally safe but may interact with certain medications.

There have been claims that cyanocobalamin, a form of vitamin B12, is as toxic as cyanide, but experts clarify that this is ...

There are two commonly used vitamin B12 supplements: cyanocobalamin and methylcobalamin, said Dr Vichar Nigam, consultant, ...