Sources & Credits

PsychonautWiki

The backbone of our pharmacology: dose-tier tables, durations, routes of administration, half-lives, tolerance curves and drug-interaction data.

TripSit

Powers the Cross-Check combination-safety ratings (combo.tripsit.me), plus concise factsheets and route references.

DrugBank

Clinical pharmacology and interaction data for approved pharmaceutical drugs.

Tripsitter

Harm-reduction knowledge-base articles, used to cross-check dosing during our audits.

The Drug Users Bible

Dominic Milton Trott’s first-hand harm-reduction reference cataloguing dosages, durations and safety notes across a wide range of substances.

WHO ATC/DDD Index

Defined Daily Dose reference tiers for pharmaceutical substances.

Drugs.Wiki

Structured medical, history and legality notes per substance (community snapshot), by Dilemma.

dose.wiki

One of our largest contributors of dose ladders, durations and subjective-effect write-ups, released under CC0 (public domain). Its Subjective Effect Index is the work of Josie Kins; each write-up carries its own “Forked from Subjective Effect Documentation by Josie Kins” credit on the substance page. (The same body of work became PsychonautWiki’s Subjective Effect Index.)

Guide to PHARMACOLOGY

The IUPHAR/BPS expert-curated database of what binds what, and how tightly. Powers the Receptor pharmacology table on substance pages — 1,773 measured binding and functional records across 421 substances, each citing the paper it came from. Matched to our catalogue by chemical structure (InChIKey), never by name. Licensed CC BY-SA 4.0.

PubChem

Every chemistry box — molecular formula, weight, SMILES, InChIKey, IUPAC name and logP — plus toxicity and pharmacokinetic summaries.

Isomer Design

Chemical-structure and isomer-relationship data, and an online home for the Shulgin indexes.

NPS Data Hub

Analytical identifiers and metadata for novel psychoactive substances.

Erowid

Tens of thousands of first-hand Experience Vault reports — the bedrock of our trip-report corpus.

Bluelight

Forum thread excerpts and a curated per-substance reference guide from one of the oldest harm-reduction communities.

Reddit

Community trip reports from r/tripreports, drug-specific subreddits and trip-index archives.

Nervewing

Detailed substance write-ups and conclusions from the Nervewing harm-reduction blog.

Effectindex

The Subjective Effect Index — the taxonomy and descriptions behind our effect profiles.

PiHKAL

“Phenethylamines i Have Known And Loved” — Alexander & Ann Shulgin’s foundational work on phenethylamine chemistry and qualitative dosage commentary.

TiHKAL

“Tryptamines i Have Known And Loved” — the Shulgins’ companion volume on tryptamine chemistry and effects.

Wikipedia

General background, history and identity information.

U.S. FDA

US drug-approval records and labelling for pharmaceutical substances.