Blackwater Ale (3.5e Equipment)
From D&D Wiki
Blackwater Ale is brewed from chemicals found in deep swamps. This gives it a thicker texture than other ales. Humans tend to stay away from the drink, though races such as Orcs carry a pint or two while traveling.
Bonuses: Gives bonus on Survival skill checks equal to a 1d3, thanks to it's ability to keep the PCs mind focused and aware.
Drunkenness: If the PC consumes too much of the ale (1 gallon or so), he/she becomes intoxicated and confused about their surroundings (a d3 penalty on Survival checks or Dexterity). This condition lasts for about 3–4 hours.
When using these rules then it is treated as a 55 PR.