vial of b12 im injection cost at costco Kirkland Signature B12, 5000 mcg, Quick Dissolve Cherry Flavor , 300 ct Cyanocobalamin Injection: Vitamin B12 Deficiency

Your body needs vitamin B12 (cyanocobalamin) to break down fat and carbohydrates for energy, and to make proteins and cells

However, you should: Call 999 or go to A&E immediately if you experience signs of a severe allergic reaction (difficulty breathing, severe throat/facial swelling, or collapse) Contact your GP if you experience a rash, itching, persistent pain at the injection site, or worsening neurological symptoms despite treatment If you suspect any side effects from your B12 injections, you can report them through the MHRA Yellow Card scheme (yellowcard.mhra.gov.uk)

If you are concerned about premature hair greying, discuss this with your GP, who can assess for treatable underlying causes whilst managing expectations about reversibility

Upon receiving the lyophilized peptide, store at 4 C or colder and away from bright light