The article you requested is

A Case of Parenteral Zolpidem Dependence With Opioid-Like Withdrawal Symptoms

J Clin Psychiatry 2004;65(9):1287[letter]

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Sir: Zolpidem, an imidazopyridine hypnotic agent, is suggested to have minimal risk of abuse or dependence.1 Nonetheless,there are some case reports documenting its abuse, dependence, and withdrawal effects.2–4 We present a case of intravenous zolpidem abuse with opioid-like withdrawal symptoms.