- See also Potion of Water Breathing I (Magical Liquid) and Potion of Water Breathing II (Magical Liquid).
It is 75% likely that a water breathing potion contains two doses and, 25% probable that there are four in the container. The potion allows the character drinking it to breathe normally in liquids that contain suspended oxygen. This ability lasts for one full hour per dose of potion quaffed, with an additional 1d10 rounds (minutes) variable. Thus, a character who has consumed a water breathing potion could enter the depths of a river, lake, or even the ocean and not drown while the magical effects of the potion persisted.