what happens if you miss a b12 injection – When Is It Worth It and Can Feel After One Dose? Vitamin B12 - PMC

Monitoring and follow-up Monitor clinically and repeat tests as indicated by the underlying condition Ongoing monitoring of liver function, renal function, and FBC as clinically indicated Regular review in primary care or specialist clinics for underlying conditions Patient advice: Patients should understand that elevated B12 is a marker requiring investigation rather than a condition requiring direct treatment

The AAFPs evidence-based clinical review states directly: Oral administration of high-dose vitamin B12 (1 to 2 mg daily) is as effective as intramuscular administration for correcting anemia and neurologic symptoms in patients with B12 deficiency (Langan RC, Goodbred AJ, American Family Physician, 2017)

Face / trigeminal nerve (especially the ophthalmic V1 branch): pain, burning, or shocks on one side of the forehead/eye/upper face

Understanding what drives degradation helps you make better storage and usage decisions

Only the 6-week levels were significantly different between the two groups.[23] Based on the 49 pmol/L (66 ng/L) difference in median milk levels reported at 6 weeks, exclusively breastfed infants would receive an extra 0.01 mcg/kg daily of vitamin B 12 from maternal 50 mcg once daily oral supplementation

Split dosing Some researchers divide their weekly dose into two smaller injections (for example, 4mg on Monday and 4mg on Thursday instead of 8mg once weekly)