Thyroid UK is aware of many people with B12 deficiency who say that their B12 “runs out” earlier than the allotted three months before they can have their next injection.
Tracy Witty, from b12deficiency.info has set up a petition make injectable vitamin B12 (hydroxocobalamin) available over the counter.
If this topic affects you please sign the petition:
change.org/en-GB/petitions/...