FDA Orange Book

Generic for Diulo

Diulo contains metolazone. 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 Diulo is metolazone. 9 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.

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Diulo products in the Orange Book

Diulo products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
tablet, oral10MGDiscontinuedNone9AB
tablet, oral2.5MGDiscontinuedNone9AB
tablet, oral5MGDiscontinuedNone9AB

NDA 018535, held by GD SEARLE LLC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic metolazone

Approved generic versions of Diulo
CompanyANDATE codeApprovedStrengths
SANDOZ INC076466AB (A-rated, therapeutically equivalent)December 19, 200310MG, 5MG
SANDOZ INC076732AB (A-rated, therapeutically equivalent)December 19, 20032.5MG
MYLAN PHARMACEUTICALS INC076698AB (A-rated, therapeutically equivalent)October 19, 200410MG, 2.5MG, 5MG
ALEMBIC PHARMACEUTICALS LTD213251AB (A-rated, therapeutically equivalent)December 2, 202010MG, 2.5MG, 5MG
INNOGENIX LLC213827AB (A-rated, therapeutically equivalent)March 30, 202110MG, 2.5MG, 5MG
UNICHEM LABORATORIES LTD214799AB (A-rated, therapeutically equivalent)March 30, 202110MG, 2.5MG, 5MG
RUBICON RESEARCH LTD215184AB (A-rated, therapeutically equivalent)August 20, 202110MG, 2.5MG, 5MG
RENATA PLC215616AB (A-rated, therapeutically equivalent)October 24, 202210MG, 2.5MG, 5MG
NE RX PHARMA LLC216216AB (A-rated, therapeutically equivalent)October 25, 202210MG, 2.5MG, 5MG
ACERTIS PHARMACEUTICALS LLC218606AB (A-rated, therapeutically equivalent)April 17, 202410MG, 2.5MG, 5MG

Questions

Is there a generic for Diulo?

Yes. The generic name for Diulo is metolazone. 9 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 Diulo?

The active ingredient in Diulo is metolazone, 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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