as oral diclofenac is generally given in 3 divided daily doses it may be at a disadvantage relative to less frequent administration with naproxen , diflunisal and sulindac in rheumatoid arthritis , although there is some evidence of diclofenac 's efficacy when administered twice daily , or once daily as a slow release tablet .
C0038792
sulindac
C0003873
rheumatoid arthritis