Orfen Tears is a potion sold in tear-shaped vials. It is a white mushroom swimming in salty, translucent-blue liquid that is pierced, drained, and then injected into the bloodstream. The mushroom instantly dries and dies if it's taken out of the vial, hence the tear shape so you can't do it without breaking the potion. A vial is good for 3-to-5 uses, depending on the health of the mushroom. Orfen Tears is the most powerful and most dangerous drug that currently exists. It's rare even in the Underdark, if one were to try to procure it they would need to do it through the Black Market of Barrek.
Mechanics & Inner Workings
Upon injecting the mushroom the user enters a trance where they have significantly Heightened Senses. They perceive everything around them in a slower motion, and their bodies also move faster (you get the Haste spell's effect). A dose lasts anywhere between 1 minute and 24 hours based on the quality of the potion. Use of the drug causes Orfen's Mark, which spreads with each further dose.
The creator of the drugs went by the name of Orfen.