Opium is a narcotic created from the sap of the opium poppy.
An opium den is referred to directly by Doctor Cottle while talking to Cally (The Ties That Bind).
Medical: Antibiotics | Anti-radiation medication | Bittamucin | Bloodstopper | Burdock root | Chamalla | Doloxan | Interrogation drug | Morpha | Serisone | Sleeping pills | Stims | Vinagro
Recreational: Ambrosia | Coto | Fumarella leaf (Caprican Imperial, Foliole, Sarcoma) | Hawryliw | Leonis Red | Lethe | Leonis Estates Sparkling Wine | New Caprican leaf | Opium | Tigh's liquor | Virgon Brew