Insert the needle, so that only half the needle has gone into your skin
What are B Complex injections used for
It is listed as a rare adverse reaction in UK product information for both oral and injectable B12 preparations, and most people tolerate B12 supplements well even at high doses
Dodex Injection - Clinical Pharmacology Vitamin B 12 is essential to growth, cell reproduction, hematopoiesis, and nucleoprotein and myelin synthesis
intramuscular administration of vitamin B12 for the treatment of patients with vitamin B12 deficiency"
Their success depends on proper medical supervision, dosage, and commitment to a healthy lifestyle, including diet and exercise