Which of the following is NOT a withdrawal symptom from cocaine?

The correct choice highlights a key aspect of cocaine withdrawal symptoms. Increased heart rate is typically associated with cocaine use rather than withdrawal. Cocaine stimulates the central nervous system, leading to increased energy levels, heightened alertness, and increased heart rate while the drug is active in the system. During withdrawal, it is common for individuals to experience opposite effects, such as fatigue, apathy, and insomnia, as the body adjusts to the absence of the drug.

Fatigue occurs due to the crash following the stimulating effects of cocaine, which can leave users physically and mentally drained. Apathy reflects a lack of motivation or interest, which is often a sign of withdrawal as the brain adjusts to the absence of the stimulating effects. Insomnia can result from the body's altered sleep patterns during and after cocaine use. Therefore, in the context of withdrawal, increased heart rate is not a symptom one would typically expect to see.