FDA Orange Book
Generic for Primaxin
Primaxin contains imipenem and cilastatin. 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 Primaxin is imipenem and cilastatin. 2 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AP. Generics match 2 of the 4 Primaxin products the Orange Book lists.
Run it in Rivvi
Map Primaxin and your other top fills to their generics
Every strength in RxNorm, with brands that have no generic flagged.
Build the mapFree to start. Opens Rivvi, the AI workspace for healthcare teams.
Primaxin products in the Orange Book
| Form and route | Strength | Brand status | Brand TE | Active generics | Generic TE codes |
|---|---|---|---|---|---|
| powder, intramuscular | EQ 500MG BASE/VIAL;500MG/VIAL | Discontinued | None | 0 | None |
| powder, intramuscular | EQ 750MG BASE/VIAL;750MG/VIAL | Discontinued | None | 0 | None |
| powder, intravenous | EQ 250MG BASE/VIAL;250MG/VIAL | Discontinued | None | 1 | None |
| powder, intravenous | EQ 500MG BASE/VIAL;500MG/VIAL | Marketed (Rx) | AP | 2 | AP |
NDA 050630, 050587, 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 imipenem and cilastatin
| Company | ANDA | TE code | Approved | Strengths |
|---|---|---|---|---|
| ACS DOBFAR SPA | 090577 | None (No TE code listed) | December 21, 2011 | EQ 250MG BASE/VIAL;250MG/VIAL, EQ 500MG BASE/VIAL;500MG/VIAL |
| HQ SPECIALTY PHARMA CORP | 207594 | AP (A-rated, therapeutically equivalent) | December 12, 2019 | EQ 500MG BASE/VIAL;500MG/VIAL |
Primaxin NDC codes
Questions
Is there a generic for Primaxin?
Yes. The generic name for Primaxin is imipenem and cilastatin. 2 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AP. Generics match 2 of the 4 Primaxin products the Orange Book lists.
What is the generic name for Primaxin?
The active ingredient in Primaxin is imipenem and cilastatin, 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.