Final answer:
Renagel, Phos-Lo, and Tums are phosphate binders, while Vitamin B12 is not.
Step-by-step explanation:
The phosphate binders Renagel, Phos-Lo, and Tums all help to reduce the levels of phosphate in the body. These medications work by binding to phosphate in the digestive system, preventing its absorption into the bloodstream. However, Vitamin B12 is not a phosphate binder. It plays a different role in the body, primarily in the production of red blood cells and the functioning of the nervous system.