Withnail & I - Drugs

Despite popular conception, there are actually very few drug references throughout Withnail and I:

The Camberwell Carrot

Danny: The joint I am about to roll requires a craftsman and can utilise up to twelve skins. It is called a Camberwell carrot.
Marwood: It's impossible to use twelve papers on one joint.
Danny: It is impossible to roll a Camberwell carrot with anything less.
Withnail: Who says it's a Camberwell carrot?
Danny: I do. I invented it in Camberwell and it looks like a carrot. This will tend to make you very high.

Phenodihydrochloride Benzelex

Danny: Trade: Phenodihydrochloride Benzelex, Street: The embalmer

Surmontil 50s

Withnail: Right, here's the plan. First, we go in there and get wrecked, then we eat a pork pie, then we drop a couple of Surmontil-50's each, means we'll miss out on Monday and come up smiling Tuesday morning.