Tetrahydroharmine (THH), also known as 7-methoxy-1,2,3,4-tetrahydroharman (7-MeO-THH), is a fluorescent indole alkaloid and β-carboline that occurs in the tropical liana species Banisteriopsis caapi. It is an oneirogenic hallucinogen similarly to harmaline. Conversely however, in contrast to other harmala alkaloids, it is very weak as a monoamine oxidase inhibitor (MAOI).
Tetrahydroharmine molecular structure diagram from the DrugsPRO substance library.
Also known as: THH, Tetrahydroharmin
Classification
Chemical: Beta-carboline
Psychoactive: Psychedelic
Tag: Beta-carboline
Tag: Plant-based
Effects
Dilated Pupils
Sedation
Nausea
Physical Euphoria
Pupil Dilation
Stimulation
Introspection
Confusion
Analysis Enhancement
Unity And Interconnectedness
Time Distortion
Euphoria
Visual Distortion
Color Enhancement
Drifting
Color Shifting
Auditory Distortion
Appetite Suppression
Routes of Administration
No route information available yet.
Harm Reduction
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Sources
Substance data is aggregated from the following public harm-reduction and reference sources.
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Tetrahydroharmine - DrugsPRO substance guide
Tetrahydroharmine: Tetrahydroharmine (THH), also known as 7-methoxy-1,2,3,4-tetrahydroharman (7-MeO-THH), is a fluorescent indole alkaloid and β-carboline that occurs in the tropical liana species Banisteriopsis caapi. It is an oneirogenic hallucinogen similarly to harmaline. Conversely however, in