Key takeaways
Sevelamer carbonate (Renvela) and lanthanum (Fosrenol) are both phosphate binders used to lower blood phosphate levels in people with kidney disease. Sevelamer carbonate is available as a tablet and a powder, while lanthanum comes as a tablet that must be chewed or crushed before taking as well as a powder that can be mixed with food. Sevelamer carbonate and lanthanum are available as a lower-cost generic, but lanthanum generally tends to be more expensive. Both medications must be taken with meals to work effectively. Sevelamer carbonate and lanthanum can cause digestive tract blockages and other digestive issues such as nausea and vomiting. Additionally, lanthanum can also show up on abdominal X-rays, which is something to keep in mind if you need an abdominal X-ray done. This is not a concern with sevelamer carbonate.
