whats better b12 injections or pills are more effective than tablets can you take b12 tablets instead of injections Vitamin B12 injections vs tablets: which is Vitamin B-12 Injections Vs Oral
Description
I have been having terrible pain in left arm since the injection 7 weeks ago

systematic review

Long-term metformin therapy and vitamin B12 deficiency: an association to bear in mind

The right move is to raise it with your GP or a haematologist, who can review your schedule, rather than quietly adding private injections on top, which leaves no one with the full picture
