___________________ is the most powerful natural stimulant; its use produces euphoria, restlessness, and excitement, while overdoses can cause delirium, violent manic behavior, and respiratory failure.

Respuesta :

The correct answer is Cocaine

Explanation:  Cocaine causes an intense and rapid euphoria that is immediately followed by the opposite - intense depression, tension and greed for more drugs. People who consume it do not eat or sleep properly. They may experience a very high heart rate, muscle spasms and seizures.