Antidote (Lycanthropy)

This transparent, red liquid seems to become more opaque during a full moon.  This potion cures you of lycanthropy if consumed before the setting of the first full moon.

This antidote can generally be acquired from apothecaries, alchemists, or even some temples for around 200 gp.  At the DM's discretion, characters who are proficient with alchemist's supplies may have the knowledge to craft this antidote themselves for half the cost, provided they have the proper materials.