DUAC Drug Patent Profile

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When do Duac patents expire, and when can generic versions of Duac launch?

Duac is a drug marketed by Stiefel and is included in one NDA.

The generic ingredient in DUAC is benzoyl peroxide; clindamycin phosphate. There are seventeen drug master file entries for this compound. Fourteen suppliers are listed for this compound. Additional details are available on the benzoyl peroxide; clindamycin phosphate profile page.

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Summary for DUAC

US Patents:	0
Applicants:	1
NDAs:	1
Raw Ingredient (Bulk) Api Vendors:	53
Formulation / Manufacturing:	see details
Drug Prices:	Drug price information for DUAC
DailyMed Link:	DUAC at DailyMed

Drug patent expirations by year for DUAC

Paragraph IV (Patent) Challenges for DUAC

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
DUAC	Gel	benzoyl peroxide; clindamycin phosphate	1% / 5%	050741	1	2008-12-11

US Patents and Regulatory Information for DUAC

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Glossary

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Stiefel	DUAC	benzoyl peroxide; clindamycin phosphate	GEL;TOPICAL	050741-001	Aug 26, 2002	AB	RX	Yes	No	⤷ Sign Up	⤷ Sign Up				⤷ Sign Up
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Exclusivity Expiration

Expired US Patents for DUAC

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Stiefel	DUAC	benzoyl peroxide; clindamycin phosphate	GEL;TOPICAL	050741-001	Aug 26, 2002	⤷ Sign Up	⤷ Sign Up
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>Patent No.	>Patent Expiration

International Patents for DUAC

See the table below for patents covering DUAC around the world.

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Country	Patent Number	Title	Estimated Expiration
Canada	2142530	COMPOSITIONS TOPIQUES CONTENANT DU PEROXYDE DE BENZOYLE ET DE LA CLINDAMYCINE, ET METHODE D'UTILISATION (TOPICAL COMPOSITIONS CONTAINING BENZOYL PEROXIDE AND CLINDAMYCIN AND METHOD OF USE THEREOF)	⤷ Sign Up
>Country	>Patent Number	>Title	>Estimated Expiration

Supplementary Protection Certificates for DUAC

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Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
0591275	SPC/GB05/030	United Kingdom	⤷ Sign Up	PRODUCT NAME: NITISINONE (2-(2-NITRO-4-TRIFLUOROMETHYLBENZOYL)-1,3-CYCLOHEXANEDIONE) OR A PHARMACEUTICALLY ACCEPTABLE SALT THEREOF; REGISTERED: UK EU/1/04/303/001 20050221; UK EU/1/04/303/002 20050221; UK EU/1/04/303/003 20050221
1458369	SPC/GB10/005	United Kingdom	⤷ Sign Up	PRODUCT NAME: ADAPALENE AND BENZOYL PEROXIDE; REGISTERED: DK 40440 20071218; UK PL10590/0057 20091111
1458369	122008000041	Germany	⤷ Sign Up	PRODUCT NAME: ADAPALEN IN KOMBINATION MIT BENZOYLPEROXID; NAT. REGISTRATION NO/DATE: 67913.00.00 20080229; FIRST REGISTRATION: DAENEMARK 40440 20071218
1458369	C01458369/01	Switzerland	⤷ Sign Up	PRODUCT NAME: ADAPALENUM + BENZOYLIS PEROXIDUM; REGISTRATION NUMBER/DATE: SWISSMEDIC 58460 19.05.2009
0137963	97C0042	Belgium	⤷ Sign Up	PRODUCT NAME: 2-(2-BENZOYL-SUBSTITUE)-1,3-CYCLOHEXANE-DIONES; REGISTRATION NO/DATE: 8452/B 19930121
1667986	92172	Luxembourg	⤷ Sign Up	PRODUCT NAME: SOLVAT ACETONIQUE DU CABAZITAXEL, OU DESIGNE SOLVAT ACETONIQUE DU DIMETHOXY DOCETAXEL OU SOLVAT ACETONIQUE DU (2R,3S)-3-TERT-BUTOXYCARBONYLAMINO-2-HYDROXY-3-PHENYLPROPIONATE DE 4-ACETOXY-2A-BENZOYLOXY-5BETA,20-EPOXY-1-HYDROXY-7BETA,10A-DIMETHOXY-9-OXO-TAX-11-ENE-13A-YLE(ACETONATE DU CABAZITAXEL)
0526708	C300097	Netherlands	⤷ Sign Up	PRODUCT NAME: BOSENTAN, DESGEWENST IN DE VORM VAN EEN ZOUT OF EEN HYDRAAT OF IN DE VORM VAN EEN ESTER VAN DE HYDROXYLGROEP VAN DE 2-HYDROXYETHOXY REST MET EEN ZUUR MET DE FORMULE R5-OH, WAARIN R5 EEN C1-7-ALKANOYL, BENZOYL, OF HETEROCYCLYCARBONYL VOORSTELT; NATL. REGISTRATION NO/DATE: U/1/02/220/001 - 005 20020515; FIRST REGISTRATION: CH IKS 58841 01 - 02 20020228
>Patent Number	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration	>SPC Description

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Summary for DUAC

Paragraph IV (Patent) Challenges for DUAC

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