vitamin b12 cyanocobalamin injection Vit Vitamin B-12 1000 mcg/ml, 100

De Luca P, Scarpa A, De Bonis E, et al

In other words, you get B12 at the same rate you use it

For those new to tirzepatide dosing in units , the escalation typically looks like this: 2.5mg for weeks 1-4, then 5mg for weeks 5-8, then 7.5mg for weeks 9-12, with optional increases to 10mg and 15mg for those who tolerate lower doses well but need additional appetite suppression

Some patients may begin with weekly injections to establish steady nutrient levels, while others transition to biweekly or monthly treatments once those levels are stabilized

That is a very different statement from they do nothing. It means: The mechanistic rationale is real