I have osteo and rheumatoid arthritis, the former due to haemochromatosis. I have a standing prescription for Brufen Retard 800mgs and Co-Codomol (Kapake) to take when i want. On a trip to Argentina my supply was stolen along with other things and the local hospital prescribed Diclofenac as a substitute (i didn`t speak Spanish so it was a bit difficult relaying the correct information). On my return i have a significant number of tablets left and as i pay for my prescriptions in the UK i wondered if i could complete using the diclofenac rather than throw them away!?