FDA Orange Book

Generic for Hetlioz

Hetlioz contains tasimelteon. 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 Hetlioz is tasimelteon. 3 companies hold an active FDA approval (ANDA) for a generic version in the Orange Book. Therapeutic equivalence codes: AB.

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Hetlioz products in the Orange Book

Hetlioz products and approved generics
Form and routeStrengthBrand statusBrand TEActive genericsGeneric TE codes
capsule, oral20MGMarketed (Rx)AB3AB

NDA 205677, held by VANDA PHARMACEUTICALS INC. Active generics are ANDA products in the Orange Book prescription list with the same ingredient, dosage form, route and strength.

Approved generic tasimelteon

Approved generic versions of Hetlioz
CompanyANDATE codeApprovedStrengths
TEVA PHARMACEUTICALS USA INC211601AB (A-rated, therapeutically equivalent)December 12, 202220MG
APOTEX INC211607AB (A-rated, therapeutically equivalent)December 20, 202220MG
MSN LABORATORIES PRIVATE LTD211654AB (A-rated, therapeutically equivalent)January 12, 202320MG

Hetlioz patents

Patents listed for Hetlioz
PatentExpiresCoversUse codeNDA
9539234January 25, 2033Method of useU-1934205677
9855241January 25, 2033Method of useU-2149205677
RE46604January 25, 2033Method of useU-2147205677
10149829January 25, 2033Method of useU-2477205677
9060995January 25, 2033Method of useU-1710205677
10449176January 25, 2033Method of useU-2149205677
10945988January 25, 2033Method of useU-2149205677
11633377January 25, 2033Method of useU-2149205677
11633377January 25, 2033Method of useU-3003205677
9539234January 25, 2033Method of useU-3004205677
10149829January 25, 2033Method of useU-3006205677
10610510January 25, 2033Method of useU-3009205677
12201604January 25, 2033Method of useU-3003205677
12201604January 25, 2033Method of useU-3865205677
10610510January 25, 2033Method of useU-2805205677
10980770January 25, 2033Method of useU-3106205677
10980770January 25, 2033Method of useU-3107205677
11850229January 25, 2033Method of useU-3342205677
11850229January 25, 2033Method of useU-3343205677
11833130January 25, 2033Method of useU-2149205677
11833130January 25, 2033Method of useU-3003205677
11918557January 25, 2033Method of useU-3003205677
11918557January 25, 2033Method of useU-3865205677
11826339January 25, 2033Method of useU-3342205677
11826339January 25, 2033Method of useU-3343205677
11285129January 25, 2033Method of useU-3342205677
11285129January 25, 2033Method of useU-3343205677
9549913January 25, 2033Method of useU-1486205677
11918556April 7, 2033Method of useU-3342205677
11918556April 7, 2033Method of useU-3343205677
9730910May 17, 2034Method of useU-2085205677
9730910May 17, 2034Method of useU-3005205677
11141400October 10, 2034Method of useU-2615205677
11141400October 10, 2034Method of useU-3007205677
10610511October 10, 2034Method of useU-3007205677
10610511October 10, 2034Method of useU-2615205677
11786502October 10, 2034Method of useU-3007205677
11786502October 10, 2034Method of useU-3739205677
11566011February 12, 2035Drug substance, Drug productNone205677
12049457February 12, 2035Drug substance, Drug productNone205677
10829465February 12, 2035Drug substance, Drug productNone205677
11760740February 12, 2035Drug substance, Drug productNone205677
10071977February 12, 2035Drug substance, Drug productNone205677
10376487July 27, 2035Method of useU-2615205677
10376487July 27, 2035Method of useU-3007205677
11266622August 29, 2035Method of useU-3003205677
10179119August 29, 2035Method of useU-3003205677
11759446February 21, 2041Method of useU-3003205677

Hetlioz exclusivity

Exclusivity listed for Hetlioz
CodeMeaningExpiresNDA
ODE-330Orphan drug exclusivityDecember 1, 2027205677

Hetlioz NDC codes

Questions

Is there a generic for Hetlioz?

Yes. The generic name for Hetlioz is tasimelteon. 3 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 Hetlioz?

The active ingredient in Hetlioz is tasimelteon, per the FDA Orange Book.

When does the Hetlioz patent expire?

The last patent listed for Hetlioz in the Orange Book expires February 21, 2041. A listed patent expiry date is not a generic launch date.

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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