The Consultant pharmacist : the journal of the American Society of Consultant Pharmacists
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To compare the risk of developing constipation between patients prescribed fentanyl transdermal system or oxycodone hydrochloride (HCl) controlled-release. ⋯ These findings suggest that patients prescribed transdermal fentanyl may have a significantly lower risk of developing constipation compared with oxycodone controlled-release, particularly in the elderly.