Some providers stack these peptides together
Step 2: Choose your injection spot Sit down in a comfortable position
Nascobal (Cyanocobalamin, USP) Nasal Spray 500 mcg/spray 0.125 mL [Label]
Vitamin B12 shot side effects Most people tolerate vitamin B12 injections well, but possible side effects include: Mild: soreness or redness at injection site, mild diarrhea, nausea, headache, itching Rare but serious: allergic reactions (rash, swelling, difficulty breathing), low potassium (hypokalemia), dizziness or heart rate changes Get emergency medical help if you have signs of an allergic reaction to Vitamin B12: hives
Parenteral vitamin B12 is the recommended treatment and will be required for the remainder of the patient's life
Cyanocobalamin : Synthetic form, requires conversion to active B12, longer shelf life, lower cost Methylcobalamin : Bioactive form, immediate utilization, preferred for neurological symptoms, more expensive Hydroxocobalamin: Used for cyanide poisoning, longest-acting Standard dose: 1000mcg/ml Routes: Deep IM (gluteal/deltoid) or subQ (abdominal) Loading phase: Daily/weekly for 1-4 weeks Maintenance: Monthly or every 3 months (hydroxocobalamin) No need for aspiration before injection Oral absorption requires intrinsic factor (absent in pernicious anemia) and healthy ileum
