Described herein are neurotrophic and nootropic compositions and methods for treating subjects with such compositions. In one aspect the composition comprises one or more
tryptamines in pure form or extracts from psilocybin containing mushrooms, or combinations thereof optionally combined with one or more
phenethylamines or amphetamines in pure form or extracts from a
plant or
mushroom, or combinations thereof, optionally one or more erinacines or hericenones in pure form, extracts from
Hericium mushroom species (e.g., H. erinaceus, H. coralloides, H. ramosum) or combinations thereof, optionally one or more cannabinoids in pure form or extracts from
Cannabis sativa,
Cannabis sativa,
Cannabis indica, or
Cannabis ruderalis, optionally, one or more adversive compounds, and optionally one or more pharmaceutically acceptable excipients. In another aspect,
tryptamine compositions described herein enhance
neuroplasticity by promoting neuronal branching through the formation of neurites (i.e.,
neurite outgrowth) and
neurite elongation (i.e., increasing
neurite length).