Wondrous Item, unknown rarity (requires attunement by a A person of trained mind and body, or of having magical constitution can attune to this item on a long rest)
Drug Holding
Allows for the user to place any amount of drugs within the bag for future use, and conceals the smell perfectly.
Magically Potent Drugs
An amount of times equal to your proficiency bonus per long rest, you can pull out a random drug that has a random magical effect (determined by a d100)
Magical Trip
As a bonus action, you can take a take a magically potent drug pulled from the bag (must be taken in full to take affect) an amount of times per long rest equal to your proficiency bonus. If taken by anyone incapable of attuning to this item, they will suffer severe backlash.
Notes: A person of trained mind and body, or of having magical constitution can attune to this item on a long rest