Producing Narcotics is as simple as throwing 1 Spoiled Meat and 5 Narcoberries into a Mortar & Pestle and hitting craft. But what about bulk production? Well, for starters you can use more than 1 Mortar & Pestle at a time. And as for Narcoberries they can either be grown in quantity with a series of Crop Plots or you can mass harvest berries with one of the bigger Dinos.
Check out these pages for more information on bulk harvesting and producing these items:
Getting Seeds & Berries (Bulk Harvesting Too!)
Farming In Ark
The Mortar & Pestle & Bulk Production
Spoiled Meat & Bulk Production