FDA Orange Book

Generic for Macrodantin

Macrodantin contains nitrofurantoin macrocrystalline. 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 Macrodantin is nitrofurantoin macrocrystalline. 6 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.

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Macrodantin products in the Orange Book

Macrodantin products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
capsule, oral100MGDiscontinuedNone7AB
capsule, oral25MGDiscontinuedNone3AB
capsule, oral50MGDiscontinuedNone6AB

NDA 016620, held by ALMATICA PHARMA LLC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic nitrofurantoin macrocrystalline

Approved generic versions of Macrodantin
CompanyANDATE codeApprovedStrengths
IMPAX LABORATORIES INC073652AB (A-rated, therapeutically equivalent)January 28, 1993100MG
IMPAX LABORATORIES INC073671AB (A-rated, therapeutically equivalent)January 28, 199350MG
AUROBINDO PHARMA USA INC074967AB (A-rated, therapeutically equivalent)July 9, 1997100MG, 50MG
AUROBINDO PHARMA USA INC077025AB (A-rated, therapeutically equivalent)August 18, 2004100MG, 25MG
ZYDUS PHARMACEUTICALS USA INC205005AB (A-rated, therapeutically equivalent)December 12, 2017100MG, 50MG
NOVEL LABORATORIES INC203233AB (A-rated, therapeutically equivalent)July 9, 2018100MG, 50MG
ALEMBIC PHARMACEUTICALS LTD211935AB (A-rated, therapeutically equivalent)June 25, 2021100MG, 25MG, 50MG
MANKIND PHARMA LTD217272AB (A-rated, therapeutically equivalent)March 21, 2023100MG, 25MG, 50MG

Macrodantin NDC codes

Questions

Is there a generic for Macrodantin?

Yes. The generic name for Macrodantin is nitrofurantoin macrocrystalline. 6 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.

What is the generic name for Macrodantin?

The active ingredient in Macrodantin is nitrofurantoin macrocrystalline, 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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