Disclosed are
solid forms of (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3a, 8, 8a-hexahydropyrrolo (2, 3-b) indol-5-yl phenyl
carbamate tartrate, including crystalline (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3a, 8, 8a-hexahydropyrrolo (2, 3-b) indol-5-yl phenyl
carbamate tartrate (Fenicillin D-
tartrate Form A), crystalline (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3a, 8, 8a-hexahydropyrrolo (2, 3-b) indol-5-yl phenyl
carbamate tartrate (Fenicillin D-tartrate Form B), crystalline (3aR)-1, 3a, 8- The present invention relates to a (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3-b) indol-5-ylphenylcarbamate tartrate dihydrate (Fenidin D-tartrate Form B), crystalline (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3a, 8, 8a-hexahydropyrrolo (2, 3-b) indol-5-ylphenylcarbamate tartrate Form A (Fenidin D-tartrate Form A + Pattern C) having peaks of pattern C, and amorphous (3aR)-1, 3a, 8-trimethyl-1, 2, 3, 3a, 8, 8, 8-hexahydropyrrolo (2, 3-b) indol-5-ylphenylcarbamate tartrate Form B) having peaks of pattern C, the invention relates to 1, 3, 5, 7, 8a-hexahydropyrrolo (2, 3-b) indole-5-yl phenyl carbamate tartrate and a preparation method thereof. Also disclosed are pharmaceutical compositions comprising a Fetinil D-tartrate Form A, a Fetinil D-tartrate Form B, a Fetinil D-tartrate Form A having a peak of pattern C, and an amorphous Fetinil D-tartrate, and methods of treating various conditions by administering these
solid forms.