From Discworld MUD Wiki
There are a few sources of narcotics.
- Smoking hashish, or inhaling the smoke in some places.
- Hashish smoke in the back room of the Flaming Cabbage
- Drinking cream of frog from the Magick Boxe in Genua.
- Mushrooms bought from the Sto Lat NPC Jack Straw.
- Dried Frog Pills
- Badly Rolled Cigarettes
They have a few effects.