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This means that at higher dosages, it becomes difficult or impossible to keep still as jaw clenching, involuntarily bodily shakes and vibrations become present, resulting in extreme shaking of the entire body, unsteadiness of the hands, and a general lack of motor control. Spontaneous bodily sensations Increased heart rate [15] [16] Abnormal heartbeat [15] [16] Dehydration Frequent urination Dry mouth Appetite suppression [16] Increased perspiration Nausea...