Potomania is a specific hypo-osmolality syndrome related to massive consumption of fluids that are poor in solutes and electrolytes. Beer potomania is a subtype of potomania characterized by chronic ingestion of large volumes of beer with a diet low in protein and electrolytes. Since beer contains little electrolytes or protein, it provides insufficient solute to facilitate water excretion by the kidney, diluting the blood and leading to severe hyponatremia. The symptoms of beer potomania are similar to other causes of hyponatremia, including dizziness, muscular weakness, neurological impairment and seizures. While the symptoms of beer potomania are similar to other causes of hyponatremia and acute water intoxication, it should be considered an independent clinical entity because of its often chronic nature of onset, pathophysiology, and presentation of symptoms.