FDA Orange Book

Generic for Hydrodiuril

Hydrodiuril contains hydrochlorothiazide. 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 Hydrodiuril is hydrochlorothiazide. 8 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB. Generics match 2 of the 3 Hydrodiuril products the Orange Book lists.

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Hydrodiuril products in the Orange Book

Hydrodiuril products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
tablet, oral100MGDiscontinuedNone0None
tablet, oral25MGDiscontinuedNone8AB
tablet, oral50MGDiscontinuedNone8AB

NDA 011835, held by MERCK AND CO INC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic hydrochlorothiazide

Approved generic versions of Hydrodiuril
CompanyANDATE codeApprovedStrengths
LEADING PHARMA LLC040702AB (A-rated, therapeutically equivalent)March 16, 200725MG, 50MG
AUROBINDO PHARMA LTD040780AB (A-rated, therapeutically equivalent)July 20, 200725MG, 50MG
UNICHEM LABORATORIES LTD040907AB (A-rated, therapeutically equivalent)August 15, 200825MG, 50MG
ACCORD HEALTHCARE INC202556AB (A-rated, therapeutically equivalent)September 24, 201225MG, 50MG
SCIEGEN PHARMACEUTICALS INC203018AB (A-rated, therapeutically equivalent)July 23, 201425MG, 50MG
HERITAGE PHARMACEUTICALS INC DBA AVET PHARMACEUTICALS INC085182AB (A-rated, therapeutically equivalent)Approved Prior to Jan 1, 198225MG, 50MG
IVAX PHARMACEUTICALS INC SUB TEVA PHARMACEUTICALS USA083177AB (A-rated, therapeutically equivalent)Approved Prior to Jan 1, 198225MG, 50MG
OXFORD PHARMACEUTICALS LLC087059AB (A-rated, therapeutically equivalent)Approved Prior to Jan 1, 198225MG
OXFORD PHARMACEUTICALS LLC087068AB (A-rated, therapeutically equivalent)Approved Prior to Jan 1, 198250MG

Questions

Is there a generic for Hydrodiuril?

Yes. The generic name for Hydrodiuril is hydrochlorothiazide. 8 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB. Generics match 2 of the 3 Hydrodiuril products the Orange Book lists.

What is the generic name for Hydrodiuril?

The active ingredient in Hydrodiuril is hydrochlorothiazide, 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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