Opioid Overdose Prevention Formulations - Indivior Inc.
Summary
The European Patent Office published patent application EP3793558A1 for Indivior Inc., covering formulations and methods for preventing opioid overdose using intranasal drug delivery. The patent application designates 35 European states including major markets. This patent grants Indivior exclusive rights to its opioid overdose prevention technology in European markets.
What changed
The European Patent Office published patent application EP3793558A1 for Indivior Inc. covering pharmaceutical formulations for opioid overdose prevention. The patent includes claims related to intranasal drug delivery systems (A61M classifications) and specific compound formulations (A61K 31/485). The application designates 35 European contracting states for patent protection.
Pharmaceutical companies and drug manufacturers developing opioid reversal agents or similar overdose prevention products should review this patent to assess potential freedom-to-operate concerns in European markets. Generic drug manufacturers and generic naloxone producers may need to evaluate whether their products fall within the scope of these claims.
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Archived snapshot
Apr 10, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
FORMULATIONS AND METHODS FOR THE PREVENTION OF OPIOID OVERDOSE
Publication EP3793558A1 Kind: A1 Apr 01, 2026
Applicants
Indivior Inc.
Inventors
CRYSTAL, Roger, SKOLNICK, Phil, MAGGIO, Edward, T.
IPC Classifications
A61K 31/485 20060101AFI20220318BHEP A61K 9/00 20060101ALI20220318BHEP A61M 11/00 20060101ALI20220318BHEP A61K 47/02 20060101ALI20220318BHEP A61K 47/18 20170101ALI20220318BHEP A61P 25/36 20060101ALI20220318BHEP A61P 43/00 20060101ALI20220318BHEP A61M 15/08 20060101ALI20220318BHEP
Designated States
AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR
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