At higher doses, causes twitching, irritability, panic, heart attack, and death.

We are asked to fill up the blank space provided by the question above. The question above state that "At higher doses, causes twitching, irritability, panic, heart attack, and death." The statement talks about a term used when a person suffer such characteristics. The nearest term to described conditions once used by a person is called Cocaine.

Its 5 points nott 50 points