Drug comparisons
Propoxyphene vs Meperidine
Propoxyphene vs Meperidine: opioids compared. Propoxyphene withdrawn for QT prolongation; Meperidine (Demerol) black box for addiction, respiratory depression, seizures.
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Clinical context
This comparison arises when considering older opioid analgesics for moderate-to-severe pain amid Propoxyphene's market withdrawal and Meperidine's unique metabolite toxicity.
Bottom line
Propoxyphene is unavailable due to cardiac toxicity while Meperidine remains a high-risk option limited to short-term use under medical supervision.
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