Sodium polystyrene sulfonate and Tenapanor interaction
Sodium polystyrene sulfonate and Tenapanor: the Tenapanor prescribing label describes an interaction that usually calls for monitoring, a dose change, or spacing the doses.
Usually manageable with monitoring or a dose change. Tell your pharmacist you take both.
What the FDA labels say
From the Tenapanor (XPHOZAH 10 mg) label · effective 2025-06-27
Sodium Polystyrene Sulfonate (SPS): Separate administration by at least three hours ( 7.2 ).
Sodium Polystyrene Sulfonate Separate administration of XPHOZAH and sodium polystyrene sulfonate (SPS) by at least 3 hours.
Taking more than these two? Interactions stack. Check your whole list at once; it stays in your browser.
Open in the checkerNot medical advice. Interaction Checker quotes FDA label text and NIH fact sheets. Whether an interaction matters for you depends on doses, timing, kidney and liver function, and other conditions. Confirm with a pharmacist or prescriber.