b12 injections versus oral supplements vs. Intramuscular Vitamin in Vitamin B12 Deficiency • The Blood Project B12 Injection vs. Oral Supplements:
Description
Who Is a Candidate for B12 Injection

Important limitations on this safety profile: the longest trial was 24 weeks, the total trial population is small by modern standards, and the clinical trials used oral dosing

According to the NHS, these neurological symptoms are classic indicators that your body is calling out for more B12
Description Methylcobalamin 1500mcg Injection Methylcobalamin 1500 mcg injection is a very effective form of Vitamin B12, primarily used to address the deficiency and manage nerve-related issues like peripheral neuropathy, diabetic neuropathy, etc

The frequency and amount of the dose administered to the patient depends on the type and intensity of the symptoms

Int J Mol Sci 20:3077