Abstract: The present invention relates to compounds of formula I, or pharmaceutically acceptable salts thereof, as well as compositions comprising such compounds. These compounds and compositions have uses in the treatment of psychiatric or neurological disorders. Compounds of formula I comprise at least one deuterium atom at the ?-position and consequently have improved oral bioavailability relative to ?-diprotic analogues.

Abstract: The present invention relates to compounds of formula I, or pharmaceutically acceptable salts thereof, as well as compositions comprising such compounds. These compounds and compositions have uses in the treatment of psychiatric or neurological disorders. Compounds of formula I comprise at least one deuterium atom at the ?-position and consequently have improved oral bioavailability relative to ?-diprotic analogues.

Abstract: The present invention relates to compositions comprising N,N-dimethyltryptamine, deuterated N,N-dimethyltryptamine and/or partially deuterated N,N-dimethyltryptamine. In particular, the present invention relates to compositions comprising a combination of N,N-dimethyltryptamine and 2% or more by weight of one or more deuterated N,N-dimethyltryptamine compound selected from ?,?-dideutero-N,N-dimethyltryptamine and ?,?,?,?-tetradeutero-N,N-dimethyltryptamine. Additional and alternative compositions of the present invention comprise a combination of N,N-dimethyltryptamine and 2% or more by weight of one or more partially deuterated N,N-dimethyltryptamine compound selected from ?,?,?-trideutero-N,N-dimethyltryptamine, ?,?-dideutero-N,N-dimethyltryptamine, and ?-deutero-N,N-dimethyltryptamine.

Abstract: The present invention relates to a solid dosage form comprising two or more compounds selected from N,N-dimethyltryptamine and its deuterated analogues and pharmaceutically acceptable salts thereof, and methods of treatment (e.g., of a psychiatric disorder or a neurological disorder) comprising administering the solid dosage form to a patient in need thereof.

Abstract: The invention relates to a combination, combination for use, method for treating, kit, dosage regime, delivery device, method of adjuvant treatment, short-duration psychedelic agent for use, or parenteral formulation for use in the treatment of a psychiatric disorder in a patient. In particular, the invention relates to the administration of a short-duration psychedelic agent in combination with a monoamine antidepressant, such as a selective serotonin reuptake inhibitor (SSRI).

Abstract: Syntheses of compounds of Formula III from compounds of Formula I via compounds of Formula II are described, as well as particular compounds of Formula III, or pharmaceutically acceptable salts thereof, compositions comprising such compounds, and uses thereof. For example, certain of these compounds and compositions of Formula III have uses in the treatment of psychiatric or neurological disorders.

Abstract: The present invention relates to compositions comprising N,N-dimethyltryptamine, deuterated N,N-dimethyltryptamine and/or partially deuterated N,N-dimethyltryptamine. In particular, the present invention relates to compositions comprising a combination of N,N-dimethyltryptamine and 2% or more by weight of one or more deuterated N,N-dimethyltryptamine compound selected from ?,?-dideutero-N,N-dimethyltryptamine and ?,?,?,?-tetradeutero-N,N-dimethyltryptamine. Additional and alternative compositions of the present invention comprise a combination of N,N-dimethyltryptamine and 2% or more by weight of one or more partially deuterated N,N-dimethyltryptamine compound selected from ?,?,?-trideutero-N,N-dimethyltryptamine, ?,?-dideutero-N,N-dimethyltryptamine, and ?-deutero-N,N-dimethyltryptamine.

Abstract: The present invention relates to a solid dosage form comprising two or more compounds selected from N,N-dimethyltryptamine and its deuterated analogues and pharmaceutically acceptable salts thereof, and methods of treatment (e.g., of a psychiatric disorder or a neurological disorder) comprising administering the solid dosage form to a patient in need thereof.

Abstract: Syntheses of compounds of Formula Ill from compounds of Formula I via compounds of Formula II are described, as well as particular compounds of Formula III, or pharmaceutically acceptable salts thereof, compositions comprising such compounds, and uses thereof. For example, certain of these compounds and compositions of Formula III have uses in the treatment of psychiatric or neurological disorders.