FDA Orange Book

Generic for Penbritin-s

Penbritin-s contains ampicillin. 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 Penbritin-s is ampicillin. 7 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AP. Generics match 5 of the 6 Penbritin-s products the Orange Book lists.

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Penbritin-s products in the Orange Book

Penbritin-s products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
injectable, injectionEQ 125MG BASE/VIALDiscontinuedNone2AP
injectable, injectionEQ 1GM BASE/VIALDiscontinuedNone7AP
injectable, injectionEQ 250MG BASE/VIALDiscontinuedNone6AP
injectable, injectionEQ 2GM BASE/VIALDiscontinuedNone7AP
injectable, injectionEQ 4GM BASE/VIALDiscontinuedNone0None
injectable, injectionEQ 500MG BASE/VIALDiscontinuedNone6AP

NDA 050072, held by WYETH AYERST LABORATORIES. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic ampicillin

Approved generic versions of Penbritin-s
CompanyANDATE codeApprovedStrengths
ACS DOBFAR SPA062719AP (A-rated, therapeutically equivalent)May 12, 1987EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 500MG BASE/VIAL
HQ SPECIALTY PHARMA CORP062772AP (A-rated, therapeutically equivalent)April 15, 1993EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 2GM BASE/VIAL, EQ 500MG BASE/VIAL
ACS DOBFAR SPA062797AP (A-rated, therapeutically equivalent)July 12, 1993EQ 2GM BASE/VIAL
ANTIBIOTICE SA090354AP (A-rated, therapeutically equivalent)December 28, 2009EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 2GM BASE/VIAL, EQ 500MG BASE/VIAL
EUGIA PHARMA SPECIALITIES LTD065499AP (A-rated, therapeutically equivalent)August 17, 2010EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 2GM BASE/VIAL, EQ 500MG BASE/VIAL
ONESOURCE SPECIALTY PTE LTD201025AP (A-rated, therapeutically equivalent)April 9, 2014EQ 1GM BASE/VIAL, EQ 2GM BASE/VIAL
SAGENT PHARMACEUTICALS INC090583AP (A-rated, therapeutically equivalent)November 27, 2015EQ 125MG BASE/VIAL, EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 2GM BASE/VIAL, EQ 500MG BASE/VIAL
SANDOZ INC061395AP (A-rated, therapeutically equivalent)Approved Prior to Jan 1, 1982EQ 125MG BASE/VIAL, EQ 1GM BASE/VIAL, EQ 250MG BASE/VIAL, EQ 2GM BASE/VIAL, EQ 500MG BASE/VIAL

Questions

Is there a generic for Penbritin-s?

Yes. The generic name for Penbritin-s is ampicillin. 7 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AP. Generics match 5 of the 6 Penbritin-s products the Orange Book lists.

What is the generic name for Penbritin-s?

The active ingredient in Penbritin-s is ampicillin, 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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