Depending on the individual, monthly injections of B12 may be sufficient for some, while others may need more frequent doses
They put the vitamin into a muscle, usually in the arm or buttock
References Garmon, E
The required tests depend on the intended analytical purpose and cannot be inferred from a single HPLC chromatogram
without imaging guidance 62325 with imaging guidance (ie, fluoroscopy or CT) 62326 Injection(s), including indwelling catheter placement, continuous infusion or intermittent bolus, of diagnostic or therapeutic substance(s) (eg, anesthetic, antispasmodic, opioid, steroid, other solution), not including neurolytic substances, interlaminar epidural or subarachnoid, lumbar or sacral (caudal)
Glutathione and biotin shots are often most effective with weekly sessions for the first month, followed by bi-weekly or monthly treatments