Metamucil is a fiber supplement that may benefit people who don't get enough fiber in their diets. Metamucil's main ingredient is psyllium, a natural fiber from psyllium seed husk. It comes in capsule ...

Lokelma (sodium zirconium cyclosilicate) is a brand-name drug prescribed for hyperkalemia in adults. Lokelma comes as a powder that you mix to form an oral liquid suspension. You take it one to three ...