Last Updated: November 8, 2026

IFEX Drug Patent Profile

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Which patents cover Ifex, and when can generic versions of Ifex launch?

Ifex is a drug marketed by Baxter Hlthcare and is included in one NDA.

The generic ingredient in IFEX is ifosfamide; mesna. There are two drug master file entries for this compound. Two suppliers are listed for this compound. Additional details are available on the ifosfamide; mesna profile page.

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Summary for IFEX
Pharmacology for IFEX
Drug ClassAlkylating Drug
Mechanism of ActionAlkylating Activity

US Patents and Regulatory Information for IFEX

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-001 Dec 30, 1988 AP RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX/MESNEX KIT ifosfamide; mesna INJECTABLE;INJECTION 019763-004 Oct 10, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-002 Dec 30, 1988 AP RX Yes No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX/MESNEX KIT ifosfamide; mesna INJECTABLE;INJECTION 019763-003 Oct 10, 1992 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

Expired US Patents for IFEX

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-002 Dec 30, 1988 ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-001 Dec 30, 1988 ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-002 Dec 30, 1988 ⤷  Start Trial ⤷  Start Trial
Baxter Hlthcare IFEX ifosfamide INJECTABLE;INJECTION 019763-001 Dec 30, 1988 ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >Patent No. >Patent Expiration

International Patents for IFEX

See the table below for patents covering IFEX around the world.

Country Patent Number Title Estimated Expiration
Austria 274001 ⤷  Start Trial
Belgium 700711 ⤷  Start Trial
Switzerland 509353 Verfahren zur Herstellung von neuen Phosphorsäure- und Thiophosphorsäurederivaten (Phosphoric and thiophosphoric acid ester amides with) ⤷  Start Trial
Switzerland 510699 Verfahren zur Herstellung von neuen Phosphorsäure- und Thiophosphorsäurederivaten (Phosphoric and thiophosphoric acid ester amides with) ⤷  Start Trial
>Country >Patent Number >Title >Estimated Expiration

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