Strong sludge cocktail

 is a consumable in the Fallout 4 add-on Far Harbor.

Characteristics
This sludge cocktail adds 150 rads, but uses one's current level of radiation to determine the increase in one's Strength for twelve minutes:
 * at more than 150 rads, Strength is boosted by 1,
 * at more than 300 rads, Strength is boosted by 2,
 * at more than 500 rads, Strength is boosted by 3,
 * at more than 700 rads, Strength is boosted by 4,
 * at more than 900 rads, Strength is boosted by 5.

Locations

 * Strong sludge cocktails can be crafted at any chemistry station.