Ivermectin Patent Expiration

Ivermectin is Used for treating inflammatory lesions of rosacea. It was first introduced by Merck Sharp And Dohme Corp in its drug Stromectol on Nov 22, 1996. Other drugs containing Ivermectin are Soolantra, Sklice. 11 different companies have introduced drugs containing Ivermectin.


Ivermectin Patents

Given below is the list of patents protecting Ivermectin, along with the drug name that holds that patent and the company name owning that drug.

Filter patents by

Drug Used in Drug Patent Number Drug Patent Title Drug Patent Expiry Drug Owner
Soolantra US10206939 Treatment of papulopustular rosacea with ivermectin Mar 13, 2034 Galderma Labs Lp
Soolantra US9089587 Treatment of papulopustular rosacea with ivermectin Mar 13, 2034 Galderma Labs Lp
Soolantra US9233117 Treatment of inflammatory lesions of rosacea with ivermectin Mar 13, 2034 Galderma Labs Lp
Soolantra US9233118 Treatment of papulopustular rosacea with ivermectin Mar 13, 2034 Galderma Labs Lp
Soolantra US9782425 Treatment of papulopustular rosacea with ivermectin Mar 13, 2034 Galderma Labs Lp
Sklice US8791153 Topical avermectin formulations and methods for elimination and prophylaxis of susceptible and treatment-resistant strains of head lice Oct 12, 2027 Arbor Pharms Llc
Sklice US8927595 Topical avermectin formulations and methods for elimination and prophylaxis of susceptible and treatment resistant strains of head lice Oct 12, 2027 Arbor Pharms Llc
Soolantra US11033565 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US7550440 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US8080530 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US8093219 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US8415311 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US8470788 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US8815816 Topical application of ivermectin for the treatment of dermatological conditions/afflictions Apr 22, 2024

(Expired)

Galderma Labs Lp
Soolantra US6133310 Method of treatment of rosacea Apr 26, 2019

(Expired)

Galderma Labs Lp
Soolantra US5952372 Method for treating rosacea using oral or topical ivermectin Sep 18, 2018

(Expired)

Galderma Labs Lp
Sklice US6103248 Topical preparation and therapy for head lice May 22, 2018

(Expired)

Arbor Pharms Llc



A patent's expiry date may change depending upon legal activities going on that patent. Critical activities like abandoning of a patent, term extension of a patent or amendment of its claims can increase or decrease the life of a patent hence affecting its expiry date and in turn affecting the generic launch date of that drug. Tracking these ongoing activities on a patent application helps to keep an eye on the latest developments in the patent process of the drug which can give an idea of how early a drug's generic could be available. The next section provides a list of recent legal activities on Ivermectin's patents.

Given below is the list recent legal activities going on the following patents of Ivermectin.

Activity Date Patent Number
Patent litigations
Payment of Maintenance Fee, 8th Year, Large Entity 05 Jul, 2023 US9233118
Payment of Maintenance Fee, 8th Year, Large Entity 05 Jul, 2023 US9233117
Payment of Maintenance Fee, 12th Year, Large Entity 03 Jul, 2023 US8093219
Payment of Maintenance Fee, 12th Year, Large Entity 13 Jun, 2023 US8080530
Payment of Maintenance Fee, 8th Year, Large Entity 19 Jan, 2023 US9089587
Payment of Maintenance Fee, 4th Year, Large Entity 10 Aug, 2022 US10206939
Payment of Maintenance Fee, 8th Year, Large Entity 17 Feb, 2022 US8815816
Payment of Maintenance Fee, 8th Year, Large Entity 31 Jan, 2022 US8791153
Recordation of Patent Grant Mailed 15 Jun, 2021 US11033565
Patent Issue Date Used in PTA Calculation 15 Jun, 2021 US11033565


About Veterinary Ivermectin

Ivermectin is used in drugs marketed by 12 different companies: First Priority Inc, Cronus Pharma Specialities India Private Ltd, Chanelle Pharmaceuticals Manufacturing Ltd, Norbrook Laboratories Ltd, Huvepharma Eood, Medpharmex Inc, Bimeda Animal Health Limited, Sparhawk Laboratories Inc, Boehringer Lngelheim Animal Health Usa Inc, Farnam Companies Inc, Elanco Us Inc, Virbac Ah Inc.

Other drugs containing Ivermectin are: Heartgard 30, heartgard tablets , Ivomec premix for swine , Equell , Eqvalan

Ivermectin Petitions

Details of Ivermectin's suitability petitions are listed below.

Petitioner Action Date of Action Description
Suitability Petitions
Noble Pharma, LLC Filed
PetaStrip, LLC Denied 31 Jan, 2014 The generic product will differ in dosage form. The RLNAD is approved as a soft chewable tablet. The proposed dosage form is an ivermectin impregnated soluble oral thin film.
Con Vet GmbH & Co. Denied
ECO LLC Approved 06 Nov, 2001 The generic product will consist of a different dosage form from the pioneer.
Intervet, Inc. Approved 10 Dec, 2002 The generic product will consist of a different dosage form and strength from the pioneer.
Ancare New Zealand, Ltd. Approved
First Priority, Inc. Filed 05 Mar, 2003 The generic product will have a different dosage form and strength from the pioneer.
Eugene G. Keller Approved
Richdel, Inc. Approved 07 Nov, 2002 The generic product will consist of a different dosage form from the pioneer.
Karen A. Sisson Approved 21 Oct, 2002 The generic product will consist of a different dosage form from the pioneer.
Highland VetPharma, LLC Approved 10 Dec, 2002 The generic product will consist of a different dosage form from the pioneer .
Highland VetPharma, LLC Denied 26 Jul, 2001 The generic product will consist of a different dosage form from the pioneer.
Equi Aid Products, Inc. Denied 30 Jun, 2000 The generic product will consist of a different dosage form , different route of administration , and different strength from the pioneer.
First Priority Approved
Smart Drug Systems, Inc. Approved 07 Dec, 2000 Ivermectin generic is a compressed chewable tablet and Heartgard-30® is an ‘extruded’ chewable tablet.
Buford Biomedical, Inc. Denied
IVX Animal Health, Inc. Approved

Ivermectin's Family Patents

Family Patents

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Ivermectin Generic API Manufacturers

Several generic applications have been filed for Ivermectin. The first generic version for Ivermectin was by Edenbridge Pharmaceuticals Llc and was approved on Oct 24, 2014. And the latest generic version is by Epic Pharma Llc and was approved on Sep 9, 2025.

Given below is the list of companies who have filed for Ivermectin generic, along with the locations of their manufacturing plants worldwide.