According to research published last week in The Lancet, a highly regarded medical journal, acetaminophen given to older adults with osteoarthritis provided no more pain relief than a placebo.
The reseach involved looking at 74 studies with over 58,000 participants.
The study showed that several drugs were effective in reducing pain, notably the following commercially marketed NSAIDs: Voltaren, Cambia, Cataflam, Aleve, Naprosyn, Motrin, Advil and Nuprin.
Arcoxia and Vioxx, currently only available in Europe, were also found to be effective. Vioxx was taken off the US market in 2004 due to cardiac-related deaths linked to the drug.
Read more about the study here: