Products based on dextropropoxyphene + paracetamol were finally withdrawn in France in March 2011, after being on the market for over 45 years.
Dextropropoxyphene’s harm-benefit balance is unfavourable, and in combination with paracetamol, it is no more effective as an analgesic than paracetamol alone. Apart from opioid dependence, it exposes patients to disproportionate risks such as convulsions or cardiac disorder. The elderly and those with renal failure are particularly at risk. Fatalities, even in cases of a slight overdose, deliberate or otherwise, have been reported.
The experience of various countries including Great Britain, Sweden and Switzerland, which withdrew this drug several years ago, or that of some health establishments in France, such as the Toulouse teaching hospital, have shown that it is possible to offer patients relief without using this potentially dangerous combination.
When additional treatment with a weak opioid is justifiable, in particular if paracetamol alone is not sufficient, it is better to prescribe codeine, whose harm-benefit balance is the most acceptable, despite its limitations. Tramadol (both alone and combined with paracetamol) should be avoided, notably because it can cause neuropsychological disorders (including convulsions) and hypoglycaemia, or cause adverse respiratory and cardiovascular effects.
©Prescrire 1 May 2011
Source: "Dextropropoxyphène + paracétamol : enfin retiré en France en mars 2011" Rev Prescrire 2011; 31 (328): 99.