JWH-018
1-pentyl-3-(1-naphthoyl)indole;
Also known as Spice · AM-678
Images
Quick reference
Duration
Experience
Primary effects
- Mimics cannabis-like effects, delivered via smokable herbs.
- Lacks the subtle variations found in natural cannabis strains.
Peak character
- Provides a cannabis-type experience with a pleasant, non-cannabis odor.
- Perceived as an artificial chemical experience, not a natural plant.
Negatives / side effects
- Despite an early unblemished reputation, it proved corrosive on its own, though less harmful than later synthetic cannabinoids.
- Easy to consume excessively due to perceived safety and packaging.
Aftereffects / comedown
- Tendency to not become a constant or frequent habit for some users.
Reference dosage
Reference ranges from third-party harm-reduction databases. Individual response varies enormously — start lower than you think.
| light | 1mg+ |
| common | 2mg+ |
| strong | 5mg+ |
| heavy | 5mg+ |
Reagent testing
| Duquenois-Levine | Purple |
| Fast Blue B | Orange/brown |
Adulterant detection: Naphthoylindole synthetic cannabinoid. Potency many times greater than natural cannabis.
Class detection only. JWH-018 was one of the first common synthetic cannabinoids; many analogues exist.
Source
Reference fields and narrative for JWH-018 extracted from The Drug Users Bible by Dominic Milton Trott (MxZero Publishing, 2022).
drugusersbible.comHarm reduction notice
This platform provides educational and harm-reduction information adapted from public reference material. It does not endorse, encourage, or facilitate drug use. It is not medical advice. If you or someone near you may be in a medical emergency, contact local emergency services immediately.