Which symptom is commonly NOT associated with stimulant overdose?

A weak and rapid pulse is not typically associated with stimulant overdose. In fact, stimulant overdoses often lead to physiological symptoms such as elevated heart rate (tachycardia) and increased blood pressure due to the stimulatory effects on the cardiovascular system. During an overdose, the body is generally in a heightened state of arousal, which would typically result in a stronger and faster heartbeat rather than a weak one.

In contrast, the other symptoms listed, such as convulsions, increased body temperature, and hallucinations, are more commonly observed during a stimulant overdose. Stimulants affect the central nervous system in ways that can lead to hyperactivity, agitation, and even severe reactions like seizures and altered mental states, including hallucinations. Increased body temperature is also a concern, as stimulants can lead to hyperthermia due to excessive energy expenditure and decreased heat dissipation.