FDA Orange Book

Generic for Kayexalate

Kayexalate contains sodium polystyrene sulfonate. Orange Book status for every listed strength, the approved generic makers, and the listed patents and exclusivities.

Source: FDA Orange Book data file dated 2026-10-09. Publisher page

Yes. The generic name for Kayexalate is sodium polystyrene sulfonate. 2 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AA.

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Kayexalate products in the Orange Book

Kayexalate products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
powder, oral, rectal453.6GM/BOTDiscontinuedNone2AA

NDA 011287, held by CONCORDIA PHARMACEUTICALS INC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic sodium polystyrene sulfonate

Approved generic versions of Kayexalate
CompanyANDATE codeApprovedStrengths
UPSHER SMITH LABORATORIES LLC090313AA (A-rated, therapeutically equivalent)December 21, 2011453.6GM/BOT
EPIC PHARMA LLC202333AA (A-rated, therapeutically equivalent)March 19, 2014453.6GM/BOT

Questions

Is there a generic for Kayexalate?

Yes. The generic name for Kayexalate is sodium polystyrene sulfonate. 2 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AA.

What is the generic name for Kayexalate?

The active ingredient in Kayexalate is sodium polystyrene sulfonate, per the FDA Orange Book.

What does a therapeutic equivalence code mean?

In the Orange Book, codes that start with A (such as AB) mean FDA considers the product therapeutically equivalent to the reference drug. Codes that start with B mean FDA does not, at this time, consider the product therapeutically equivalent.

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