Ruk Tar

Source Potions and Poisons pg. 27
Type injury; Addiction moderate, Fortitude DC 25
Price 55 gp
Effect 1 hour; +2 alchemical bonus to Strength and immunity to pain effects
Effect after 1 hour; the user gains the exhausted condition
Damage 1d4 Int damage
Common among desperate adventurers, gladiatorial combatants, and orc tribes, ruk tar is often applied after the first blood of a fight is spilled, using the wound as an opportunity to enhance the user's abilities to ensure victory.