Abstract: Crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin), compositions containing that crystalline form, and their methods of use are disclosed. The crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin) according to the disclosure include crystalline 4-acetoxy-N,N-dimethyltryptammonium hydrofumarate, the fumarate salt of psilacetin, and/or crystalline bis(4-acetoxy-N,N-dimethyltryptammonium) fumarate, and pharmaceutical compositions containing a crystalline form of psilacetin.

Abstract: The disclosure relates to crystalline form 1 of 5-hydroxy-N,N,N-trimethyl-tryptammonium (5-HTQ) iodide, and to pharmaceutical compositions containing the compound and to methods of treatment using it.

Abstract: The disclosure relates to crystalline psilacetin derivatives, compositions containing those crystalline derivatives, and methods of treatment using them. The crystalline psilacetin derivatives include crystalline 4-acetoxy-N-methyl-N-ethyltryptammonium (4-AcO-MET) hydrofumarate (“crystalline 4-AcO-MET hydrofumarate”), crystalline 4-acetoxy-N-methyl-N-allyltryptammonium (4-AcO-MALT) hydrofumarate (“crystalline 4-AcO-MALT hydrofumarate”), and crystalline 4-acetoxy-N,N-diallyltryptammonium (4-AcO-DALT) fumarate fumaric acid (“crystalline 4-AcO-DALT fumarate fumaric acid”).

Abstract: The disclosure relates to crystalline form 1 of [2-(5-methoxy-1H-indol-3-yl)ethyl]dipropylamine (5-MeO-DPT) and to crystalline form 1 of bis([2-(5-methoxy-1H-indol-3-yl)ethyl]dipropylazanium) (2E)-but-2-enedioate (5-MeO-DPT fumarate), and to pharmaceutical compositions containing the compounds and methods of treatment using them.

Abstract: The disclosure relates to crystalline forms of bis(4-hydroxy-N-methyl-N-isopropyltryptammonium) fumarate (“crystalline bis-miprocin fumarate”), compositions containing that crystalline form, and their methods of treatment using them.

Abstract: The disclosure relates to compounds of formula (I): Among the substituents in a compound of formula (I), one of R4 and R5 is hydrogen and the other of R4 and R5 is —OSC2Rs6. The disclosure relates to compounds of formula (II): Among the substituents in a compound of formula (II), R6 is a halogen chosen from F, Cl, Br, and I. The disclosure relates to compositions comprising a compound of formulas (I) or (II) and an excipient. The disclosure relates to pharmaceutical compositions comprising a therapeutically effective amount of a compound of formulas (I) or (II). The disclosure relates to therapeutic uses of compounds of formulas (I) or (II).

Abstract: The disclosure relates to norpsilocin compounds, compositions containing those crystalline compounds, and methods of treatment using them. The norpsilocin compounds include crystalline 4-hydroxy-N-methyltryptamine (“crystalline 4-HO-NMT” or “crystalline norpsilocin freebase”), crystalline 4-hydroxy-N-methyltryptammonium fumarate (“crystalline norpsilocin fumarate”), and 4-hydroxy-N-methyltryptammonium fumarate (“norpsilocin fumarate”) and their compositions and uses.

Abstract: The disclosure relates to (2-{4-[(2,2-dimethylpropanoyl)oxy]-1H-indol-3-yl}ethyl)(methyl)azanium chloride (4-pivaloyloxy-N-methyltryptammonium chloride), crystalline 4-pivaloyloxy-N-methyltryptammonium chloride, and specific crystalline forms thereof, including crystalline form 1 of 4-pivaloyloxy-N-methyltryptammonium chloride, to compositions containing the same, and to methods of treatment using them.

Abstract: This disclosure pertains to new compositions and methods comprising a first serotonergic drug and a second serotonergic drug. In one embodiment, the compositions disclosed herein are used for a method of regulating a neurotransmitter receptor, e.g., a serotonin receptor. In one embodiment, the compositions disclosed herein comprise purified compounds, e.g., a purified psilocybin derivative, a purified cannabinoid, a purified terpene, a purified tryptamine, purified LSD, and/or purified MDMA.

Abstract: This disclosure relates to crystalline bis(4-hydroxy-N,N-d-n-propyltryptammonium)fumarate tetrahydrate (4-HO-DPT fumarate-4H2O) and to Crystalline 4-hydroxy-N,N-di-n-propyl-tryptammonium chloride (4-HO-DPT chloride). Compositions containing crystalline 4-HO-DPT fumarate-4H2O or crystalline 4-HO-DPT chloride, and methods of use are disclosed.

Abstract: Crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin), compositions containing that crystalline form, and their methods of use are disclosed. The crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin) according to the disclosure include crystalline 4-acetoxy-N,N-dimethyltryptammonium hydrofumarate, the fumarate salt of psilacetin, and/or crystalline bis(4-acetoxy-N,N-dimethyltryptammonium) fumarate, and pharmaceutical compositions containing a crystalline form of psilacetin.

Abstract: The disclosure relates to N-methyl-N-allyl-tryptamine (MALT) hydrofumarate, crystalline MALT hydrofumarate, N—N-dibutyl-tryptamine (DBT) iodide, crystalline DBT iodide, crystalline N-ethyl-N-propyl-tryptamine (EPT) hydrofumarate, and crystalline N—N-diisopropyl-tryptamine (DiPT) hydrofumarate, compositions containing them, and the methods of treatment using them.

Abstract: Disclosed herein are compositions comprising a serotonergic tryptamine compound, combinations thereof, and methods of using them for treating and preventing a variety of human conditions. In one embodiment, disclosed herein are new compositions and methods which comprise a therapeutically effective amount of a first purified psilocybin derivative and a therapeutically effective amount of a second compound. The second compound is selected from the group consisting of a second purified psilocybin derivative, a purified terpene, a serotonergic drug, an adrenergic drug, a dopaminergic drug, a purified erinacine, and a purified hericenone.

Abstract: The disclosure relates to crystalline forms of bis(4-hydroxy-N-methyl-N-isopropyltryptammonium) fumarate (“crystalline bis-miprocin fumarate”), compositions containing that crystalline form, and their methods of treatment using them.

Abstract: The disclosure relates to crystalline psilacetin derivatives, compositions containing those crystalline derivatives, and methods of treatment using them. The crystalline psilacetin derivatives include crystalline 4-acetoxy-N-methyl-N-ethyltryptammonium (4-AcO-MET) hydrofumarate (“crystalline 4-AcO-MET hy-drofumarate”), crystalline 4-acetoxy-N-methyl-N-allyltryptammonium (4-AcO-MALT) hydrofumarate (“crystalline 4-AcO-MALT hydrofumarate”), and crystalline 4-acetoxy-N,N-diallyltryptammonium (4-AcO-DALT) fumarate fumaric acid (“crystalline 4-AcO-DALT fumarate fumaric acid”).

Abstract: The disclosure relates to 5-methoxy-N,N-diallyltryptamine (“5-MeO-DALT”), bis-(5-meth-oxy-N,N-di-allyl-tryptammonium) fumarate (“5-MeO-DALT fumarate”), and crystalline bis-(5-meth-oxy-N,N-di-allyl-tryptammonium) fumarate (“5-MeO-DALT fumarate”), compositions containing them, and the methods of treatment using them.

Abstract: This disclosure pertains to new compositions and methods comprising a first serotonergic drug and a second serotonergic drug. In one embodiment, the compositions disclosed herein are used for a method of regulating a neurotransmitter receptor, e.g., a serotonin receptor. In one embodiment, the compositions disclosed herein comprise purified compounds, e.g., a purified psilocybin derivative, a purified cannabinoid, a purified terpene, a purified tryptamine, purified LSD, and/or purified MDMA.

Abstract: Crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin), compositions containing that crystalline form, and their methods of use are disclosed. The crystalline forms of 4-acetoxy-N,N-dimethyltryptamine (psilacetin) according to the disclosure include crystalline 4-acetoxy-N,N-dimethyltryptammonium hydrofumarate, the fumarate salt of psilacetin, and/or crystalline bis(4-acetoxy-N,N-dimethyltryptammonium) fumarate, and pharmaceutical compositions containing a crystalline form of psilacetin.

Abstract: Crystalline N-methyl tryptamine derivatives, compositions containing those crystalline forms and their methods of use are disclosed. The crystalline N-methyl tryptamine derivatives according to the invention include crystalline N-methyl-N-propyltryptamine (MPT), crystalline N-methyl-N-isopropyltryptammonium fumarate (MiPT fumarate) and crystalline 4-hydroxy-N-methyl-N-isopropyltryptammonium fumarate monohydrate (HO-MiPT fumarate monohydrate).

Abstract: This disclosure pertains to new compositions and methods comprising a psilocybin derivative. In one embodiment, the compositions disclosed herein are used for a method of regulating a neurotransmitter receptor, e.g., a serotonin receptor. In one embodiment, the compositions disclosed herein comprise purified compounds, e.g., a purified psilocybin derivative, a purified cannabinoid, or purified terpene.