Is D-Propoxyphene Napsylate stronger or weaker than codein? How much mg of codein will 2 tabllets be?
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Answers:
Structurally, it's a relative of the synthetic narcotic, methadone. It's prescribed in two forms -- propoxyphene hydrochloride and propoxyphene napsylate -- for relief of mild to moderate pain.
Aside from slight differences -- the napsylate (or N-form) of propoxyphene is more slowly absorbed in the body and so has a longer duration of action -- the two drugs are identical. Both are found in a number of prescription pain medications, including:
* Darvon and Darvon-N (propoxyphene only)\
* Darvon with A.S.A., Darvon-N with A.S.A. (with aspirin)
* Darvocet, Darvocet-N, Wygesic (with acetaminophen)
* Darvon Compound, Darvon Compound-65 (with aspirin and caffeine)
But in whatever form, propoxyphene is prescribed and sold as a mild analgesic for pain that won't stop with aspirin.
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