Sevelamer carbonate tablet and preparation method thereof

The invention provides a sevelamer carbonate tablet and a preparation method thereof, belonging to the technical field of medicines. The sevelamer carbonate tablet mainly comprises a diluent, a modifier, a lubricant, a flow aid, and a coating agent. The sevelamer carbonate is an unabsorbable crosslinked polymer capable of binding with phosphorus, and is used for treating hyperphosphatemia. The sevelamer carbonate tablet is safe and effective, stable in quality, low in cost, and convenient to take, and the compliance of patients is enhanced.