Scenario F: Zero Hit Points / Healing Potion Used

Using a healing potion on a character who has zero hit points is much more dangerous than using the same draught on a healthier patient.  The chemical accelerant is simply more taxing on an already overtaxed system.  Thus, the chance of the healing potions triggering a negative systemic reaction is 2% per intensity of the potion.  The risk to Fey characters is 4% per intensity of the potion, and the elixir yields only half the normal points of recovery assuming that the potion is not designed for use by the Fey.