Are There Any Side Effects from B12 Injections? Harley Laser Specialists London Warning Signs That You Have a B12 Deficiency DrJockers.com Vitamin B12 deficiency, sometimes called cobalamin deficiency, happens when your body is either not getting enough or not absorbing enough vitamin B12 from the foods you eat. Vitamin B12 is an important Vitamin B12: Urine discolouration could mean you're talking too many supplements Express.co.uk Compounded Vitamin B Complex Injection Empower Pharmacy Red urinary discolouration following hydroxocobalamin treatment for vasoplegic syndrome Canadian Journal of Anesthesia Journal canadien d'anesthsie Springer Nature Link