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Generated: May 27, 2018

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FEMSTAT Drug Profile

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

Femstat is a drug marketed by Roche Palo and Bayer and is included in three NDAs.

The generic ingredient in FEMSTAT is butoconazole nitrate. There are six drug master file entries for this compound. One supplier is listed for this compound. Additional details are available on the butoconazole nitrate profile page.
Summary for FEMSTAT
US Patents:0
Applicants:2
NDAs:3
Bulk Api Vendors: 33
Patent Applications: 2,498
DailyMed Link:FEMSTAT at DailyMed
Drug patent expirations by year for FEMSTAT
Synonyms for FEMSTAT
(+-)-1-(4-(4-Chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)-1H-imidazole mononitrate
(+-)-1-(4-(p-Chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)imidazole mononitrate
1-(4-(4-Chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)-1H-imidazole nitrate
1-(4-(4-Chlorophenyl)-2-(2,6-dichlorophenylthio)-n-butyl)imidazole nitrate
1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)sulfanyl-butyl]imidazole nitrate
1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)sulfanyl-butyl]imidazole; nitric acid
1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)sulfanylbutyl]imidazole nitrate
1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)sulfanylbutyl]imidazole; nitric acid
1-[4-(4-chlorophenyl)-2-(2,6-dichlorophenyl)sulfanylbutyl]imidazole;nitric acid
1-[4-(4-Chlorophenyl)-2-[(2,6-dichlorophenyl)thio]butyl]imidazole Nitrate
1-{4-(4-chlorophenyl)-2-[(2,6-dichlorophenyl)sulfanyl]butyl}-1H-imidazole nitrate
1-{4-(4-Chlorophenyl)-2-[(2,6-dichlorophenyl)thio]butyl}-1H-imidazole nitrate
1H-Imidazole, 1-(4-(4-chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)-, (+-)-, mononitrate
1H-Imidazole, 1-(4-(4-chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)-, mononitrate
1H-Imidazole, 1-(4-(4-chlorophenyl)-2-((2,6-dichlorophenyl)thio)butyl)-, mononitrate, (+-)-
64872-77-1
67085-13-6 (Parent)
67085-14-7
AB0007996
AB2000320
ABP000787
AC-199
AC1L2I4O
ACT06285
AK164492
AKOS015855542
AKOS015964937
AN-16063
API0000434
AS-14137
B4801
BC220322
Butaconazole nitrate
Butoconazole (nitrate)
BUTOCONAZOLE NITRATE
Butoconazole nitrate (USP)
Butoconazole nitrate [USAN:USP]
Butoconazole nitrate [USAN]
Butoconazole nitrate, >=90% (HPLC)
Butoconazole Nitrate, pharmaceutical secondary standard; traceable to USP
Butoconazole nitrate, United States Pharmacopeia (USP) Reference Standard
Butoconazole nitrate/
butoconazole; nitric acid
Butoconazolenitrate
C-46110
C08066
C19H17Cl3N2S.HNO3
C19H18Cl3N3O3S
CAS-64872-77-1
CCG-220408
CHEBI:3241
CHEMBL1200398
CS-2307
CTK8E8274
D00880
DSSTox_CID_25452
DSSTox_GSID_45452
DSSTox_RID_80888
DTXSID6045452
duplicate RN for nitrate
Exelgyn
Femstat (TN)
Femstat 3
Femstat One
FT-0653569
Gynazole-1
Gynazole-1 (TN)
Gynomyk
HE069780
HE373582
HMS1569A18
HMS2096A18
HMS2234A19
HMS3370O18
HMS3655A16
HY-B0293
I14-0940
K050
KB-217326
KM0882
KS-00000M1R
LS-78314
LS-78315
MLS002153798
MolPort-003-845-449
Mycelex-3
NCGC00016812-01
NCGC00179596-03
nitrato de butoconazol
RS-35887
RS-35887-00-10-3
s1833
SCHEMBL41394
SMR001233176
SR-01000841222
SR-01000841222-2
ST51053973
TC-070891
Tox21_110624
Tox21_110624_1
ZHPWRQIPPNZNML-UHFFFAOYSA-N

US Patents and Regulatory Information for FEMSTAT

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Roche Palo FEMSTAT butoconazole nitrate CREAM;VAGINAL 019215-001 Nov 25, 1985 DISCN No No ➤ Try a Free Trial ➤ Try a Free Trial ➤ Try a Free Trial
Roche Palo FEMSTAT butoconazole nitrate SUPPOSITORY;VAGINAL 019359-001 Nov 25, 1985 DISCN No No ➤ Try a Free Trial ➤ Try a Free Trial ➤ Try a Free Trial
Bayer FEMSTAT 3 butoconazole nitrate CREAM;VAGINAL 020421-001 Dec 21, 1995 DISCN Yes No ➤ Try a Free Trial ➤ Try a Free Trial ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration

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Expired US Patents for FEMSTAT

Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration
Roche Palo FEMSTAT butoconazole nitrate CREAM;VAGINAL 019215-001 Nov 25, 1985 ➤ Try a Free Trial ➤ Try a Free Trial
Roche Palo FEMSTAT butoconazole nitrate SUPPOSITORY;VAGINAL 019359-001 Nov 25, 1985 ➤ Try a Free Trial ➤ Try a Free Trial
Applicant Tradename Generic Name Dosage NDA Approval Date Patent No. Patent Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Accenture
Federal Trade Commission
Deloitte
Healthtrust
Julphar
Mallinckrodt
Colorcon
Chubb
Boehringer Ingelheim

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