Mesembrine Crystalline Salt Patent Grant

USPTO granted Patent US12595231B2 on April 7, 2026, to Kanna Health Ltd for novel crystalline salt forms of mesembrine, a compound with chemical formula C17H23NO3. The patent (CPC: C07D 209/12) covers the preparation method and medicinal use of mesembrine besylate salt. Inventors are Ryan Joseph Protzko and Royston Anthony Gray. The application was filed March 22, 2024, and contains 18 claims.

This patent grant represents standard intellectual property protection for a pharmaceutical compound. No immediate compliance action is required for most entities. Competitors developing similar mesembrine formulations should review the patent claims to assess potential freedom-to-operate concerns. Generic pharmaceutical manufacturers or researchers may need to consider licensing options or design-around strategies if pursuing related products.