Cocaine toxicity refers to the harmful effects that occur when someone takes too much cocaine or is exposed to cocaine for a prolonged period of time. Some common symptoms of cocaine toxicity may include restlessness, agitation, increased heart rate, and blood pressure, arrhythmia (irregular heart rhythm), chest pain, difficulty breathing, nausea and vomiting, seizures, confusion and disorientation, panic attacks, hallucinations, profuse sweating, hyperthermia (elevated body temperature), and muscle rigidity. In severe cases, cocaine toxicity can trigger cardiac arrest, respiratory failure, stroke, and even death.