red urine after b12 injection urinary discolouration following hydroxocobalamin treatment for vasoplegic syndrome | Canadian Journal of Anesthesia/Journal canadien d'anesthésie B12 Injections - Naturopathic Medicine

This multi-receptor approach distinguishes it from existing licensed medicines such as semaglutide (Ozempic, Wegovy) or tirzepatide licensed in the UK as Mounjaro for type 2 diabetes and as Zepbound for obesity which act on fewer receptor pathways

For adults under age 65, the easiest way to get B12 is to take at least one 2,000 mcg supplement each week or a daily dose of 50 mcg

Some patients feel as though they want more frequent injections, and occasionally we test levels to see if they are receiving adequate replacement, but Im not sure how strong the evidence is to support this. GPs should consider periodic vitamin B12 testing of higher-risk patients who take metformin, even if they dont display symptoms of deficiency, the UK medicines regulator said earlier this year

And its one where the chemistry gives a clearer answer than most compounds in this space

Your medical history: If you have any concerns about injections, you should discuss your options with a healthcare professional