Hepatic encephalopathy is a condition in which the liver does not function properly, leading to a buildup of toxins in the brain. Some common synonyms for this condition include hepatic coma, liver coma, and portal-systemic encephalopathy. Other related terms that may be used include ammonia toxicity, metabolic encephalopathy, and cirrhotic encephalopathy. Symptoms of hepatic encephalopathy can include confusion, difficulty with coordination, hallucinations, and even coma in severe cases. Treatment typically involves addressing the underlying liver condition and managing the symptoms of encephalopathy with medications and lifestyle changes.