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BARLOW
Low doses
Appetite suppression
Wakefulness
Heightened alertness
Euphoria 21
Impairment of voluntary movement
Headache
Irregular or rapid heartbeat
Nausea and vomiting
Skin rash
Some people may experience drowsiness 22
High doses
Exhilaration and excitation
Agitation
Muscle twitching
Dilation of pupils
Confusion
Hallucinations and paranoia
Flushing
Increased blood pressure and pulse rate
Dry mouth
Vomiting
Fever and sweating
Delirium
Seizures, followed by coma 23
Anxiety and restlessness
Excessive repetition of movements and meaningless tasks
Formication- the sensation of bugs or worms crawling under the skin
..