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fittings FDA Orange Book Therapeutic Equivalence
x402
fittings FDA Orange Book Therapeutic Equivalence is a paid API for AI agents from fittings.sh, paid per call via x402, $0.00692/call, status unknown (last checked 2026-09-14).
Returns FDA therapeutic equivalence (TE) ratings, reference drug status, application type, sponsor, and marketing status for a drug by name or application number.
Price / call$0.00692
Success—
StatusUnknown
How this service works
FDA therapeutic equivalence codes for a drug: the TE rating and what it means, whether each product is the reference listed drug or reference standard, plus application type, sponsor and marketing status. Patent and exclusivity listings are not included.
Output
A list of drug products (up to the requested limit) each containing: the FDA TE rating code (e.g. AB, BX), a plain-English explanation of what that code means, whether the product is designated as the reference listed drug (RLD) or reference standard (RS), the FDA application type (NDA, ANDA, etc.), the application number, the sponsor/manufacturer name, and the current marketing status.
Example use cases
Generic drug substitution check
“Is there a generic version of Lipitor that the FDA has rated as therapeutically equivalent? Show me the TE code and whether it's an AB-rated product.”
Formulary review for pharmacy benefit
“Pull up the FDA Orange Book therapeutic equivalence data for metformin — I need the TE ratings, application types, and which one is the reference listed drug, up to 15 results.”
Sponsor and marketing status audit
“Look up FDA application NDA020702 in the Orange Book and give me the therapeutic equivalence code, the sponsor name, and current marketing status.”
Technical details
Endpoint
GEThttps://fittings.sh/v1/orangebook/therapeutic-equivalenceWhen to prefer
Use this endpoint when you need FDA Orange Book therapeutic equivalence data including TE codes, RLD/RS designation, sponsor, application type, and marketing status for a drug. Prefer this over general drug databases when the specific FDA TE classification is required — e.g. for generic substitution decisions, formulary management, or regulatory compliance checks. Note: patent and exclusivity data are not included, so use a different source for those needs.
Side effects
- Drug name not found in Orange Book — returns empty result set
- Ambiguous drug name matching multiple compounds — may return unintended products
- Invalid application number format — may return no results or an error
- Limit parameter out of range (outside 1–25) — may be clamped or rejected
- Patent and exclusivity data is explicitly excluded — requests for that data will yield no results
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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