Tetrahydrofuran-Fentanyl
Limited data
Limited data
Sparse data. Doses and effects may be unreliable or untested.
- 1 source
- no dose data
- 19 combo interactions documented
- classified Research-chemical
- 1 source
- no dose data
- 19 combo interactions documented
- classified Research-chemical
Aliases: Thf-f, thff
Summary
An analogue of fentanyl that is unknown in literature. Is most likely less potent than most other analogues. Yet very few reports are around.
Effect Profile
Scores (1–10) curated from multiple sources:
- Effect keyword matching from PsychonautWiki catalog
- Weighted by importance: core (×3), major (×2), minor (×1)
Strong euphoria with mild sedation and itching/nausea
Tolerance
Tolerance Decay
Acute tolerance: develops within a single session — the reset numbers above apply after sustained heavy use, not after one binge. Within-session tachyphylaxis usually resets largely overnight.
Effects
- Stimulation
- Physical euphoria
- Muscle relaxation
- Motor impairment
- Increased heart rate
- Nausea
- Vasoconstriction
- Respiratory depression
- Teeth grinding
- Sedation
- Reduced anxiety
- Cognitive euphoria
- Euphoria
- Anxiety suppression
- Wakefulness
- Anxiety
- Compulsive redosing
- Dizziness
- Thought deceleration
- Time distortion
- Increased music appreciation
- Increased libido
- Tactile enhancement
- Color enhancement
- Disinhibition
- Appetite suppression
- Dehydration
- Light sensitivity
- Double vision
- Dulled perception
Combinations
Cross-Check Tetrahydrofuran-Fentanyl with another substanceHelpful Links
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