Generic competition · all medicines · read 12 November 2026

Is there a generic of Calcium Oxybate; Magnesium Oxybate; Potassium Oxybate; Sodium Oxybate, and who makes it?

Calcium Oxybate; Magnesium Oxybate; Potassium Oxybate; Sodium Oxybate appears in 1 dosage-form group in the FDA Orange Book as of 12 November 2026, with no generic maker listed as marketed. 1 group has a brand listed as marketed and no generic listed as marketed. The data does not state why, and it does not state that one is coming. This is the Orange Book's listing, not a forecast.

Compiled and checked by Vincent Wesley Couey (ORCID 0009-0005-6869-308X) from the Orange Book data files, downloaded 12 November 2026.

Not medical advice. This page reports what the FDA's Orange Book lists, not what a pharmacy has in stock, what anything costs, or whether a generic is right for you. Ask your pharmacist or prescriber about your own medicine.

Calcium Oxybate; Magnesium Oxybate; Potassium Oxybate; Sodium Oxybate1 dosage-form group in the Orange Book

0generic makers listed

Calcium Oxybate; Magnesium Oxybate; Potassium Oxybate; Sodium Oxybate appears in 1 dosage-form group in the FDA Orange Book as of 12 November 2026, with no generic maker listed as marketed.
1 group has a brand listed as marketed and no generic listed as marketed. The data does not state why, and it does not state that one is coming.
Patents and exclusivities are shown as listed by the application holder; the Orange Book does not rule on them, and a listed patent is not a statement that a generic is blocked. This says nothing about price, supply or quality.

Solution, Oral

Brand listed, no generic listed as marketed

Brand listed as marketed: Xywav. No generic is listed as marketed.

generic makers listed as marketed, by first approvallisted patent expiryexclusivity end

Patents and exclusivities still listed

21 July 2027Exclusivity ODE-361 Xywav
21 January 2028Exclusivity PED Xywav
12 August 2028Exclusivity ODE-369 Xywav
11 January 2033Patent 10675258
11 January 2033Patent 9132107 drug product
11 January 2033Patent 8901173 drug product
11 January 2033Patent 10195168 drug product
11 January 2033Patent 8591922 drug product
11 January 2033Patent 11554102 drug product
15 March 2033Patent 8772306
15 March 2033Patent 11986446

14 more patents are listed.

US Food and Drug Administration, Orange Book data files, downloaded 12 November 2026. A listed patent is not a ruling that a generic is blocked, and no figure here says anything about price, supply or quality. Check the Orange Book.

Where can you go from this result?

Open it in the check to search another medicine, or see every brand with no generic listed. The FDA explains generic approval in how generic drugs are approved and the FDA generic drug facts, and the Orange Book itself is the FDA Orange Book. To check what is available now, ask your pharmacist, and see the FDA drug shortages page.