Hypnocil

Hypnocil is a fictional drug featured in the A Nightmare on Elm Street film series. It was first seen in the 1987 movie A Nightmare on Elm Street 3: Dream Warriors. It was also seen in the 2003 film, Freddy vs. Jason.

Description
Hypnocil is an experimental psychoactive drug that comes in the form of a pill. It is a known dream suppressant and is not approved by the Food and Drug Association. It is theorized that prolonged use of Hypnocil may have long-lasting damaging side-effects on a person's physical health and psyche.