Description

An analogue of fentanyl that is unknown in literature. Is most likely less potent than most other analogues. Yet very few reports are around. Be careful.

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OpenMind Score

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No long-term score yet — old experimental ratings are no longer shown.

No data

Long-term benefit, safety, and sustainability. Acute effect strength does not count here.

ⓘ How is the score calculated?

The score uses long-term ratings only. Each axis is scored 1–10, combined as a weighted average, and capped when critical risks are very low.

Weighted average The displayed score is directly the weighted average of the long-term axes. No hidden adjustment is applied.

Risk cap Safety caps: Very low dependence, physical/psychological safety, or recovery scores limit the maximum score.

Weights

Sustained Benefit 20%

Functional Integration 10%

Emotional Aftermath 7.5%

Physical Safety & Tolerability 12.5%

Psychological Safety 12.5%

Dependence Safety 17.5%

Recovery / Tolerance / Withdrawal 7.5%

Predictability & Control 5%

Life Burden 7.5%

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TETRAHYDROFURAN-FENTANYL

Effect Profile

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Description

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Weights

Long-term rating

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