A member asked:

Is d-propoxyphene napsylate stronger or weaker than codein? please advise!

A doctor has provided 1 answer

Not sure why the ?: since propoxyphene has not been available legally in the United States for about 10 years now. It was taken off the market for 2 major reasons. One was that it simply didn't work. Codeine DOES work. Numerous studies showed that darvon compounds only worked because of the other things in them (aspirin, tylenol (acetaminophen) etc.) and that darvon alone was a placebo. Secondly, it had cardiac effects.

Answered 7/27/2014

3.8k views

Thank

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