FDA Orange Book
Is there a generic for Duopa?
Duopa contains carbidopa and levodopa. 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
No. The Orange Book lists no active FDA-approved generic (ANDA) for Duopa (carbidopa and levodopa).
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Duopa products in the Orange Book
| Form and route | Strength | Brand status | Brand TE | Active generics | Generic TE codes |
|---|---|---|---|---|---|
| suspension, enteral | 4.63MG/ML;20MG/ML | Marketed (Rx) | None | 0 | None |
NDA 203952, held by ABBVIE INC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.
Duopa NDC codes
Questions
Is there a generic for Duopa?
No. The Orange Book lists no active FDA-approved generic (ANDA) for Duopa (carbidopa and levodopa).
What is the generic name for Duopa?
The active ingredient in Duopa is carbidopa and levodopa, 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.