post b12 injections how long after injection blood test B12 Vitamin B12 Injections - Philadelphia
Description
doi: 10.1111/vru.12807
PMID 23212934
In a retrospective study, it was observed that subjects receiving doses of metformin higher than 2000 mg/day or for more than 4 years had low levels of vitamin B 12 [18]
Patients should also be aware that folate supplementation should not be started before B12 deficiency has been treated, as doing so can precipitate or worsen neurological complications
