Effects of parathyroid hormone on delayed renal allograft function.

should be used only once.' Diabetic patients therefore received conflicting advice from the DHSS and high street chemists (who had an added financial incentive in advocating the single use of syringes) on the one hand, and from diabetic clinic staff on the other. Our present study shows that patients heeded the advice of clinic staffand continued to reuse syringes. Indeed, the frequency of reuse of syringes by these patients actually increased. No systematic advice was given to the patients and there is no obvious reason why the reuse of syringes increased over time. One possible explanation is that patients increased the reuse of syringes as their confidence and experience grew. This did not seem to be a conscious decision as most patients were unaware that they had increased their frequency of reuse. The conflict should now be resolved as the Department of Health has recently issued Drug Tariff Specification No 39A bearing the heading "Sterile Single Use or Single Patient Use," although it seems likely that the labels on the syringes will continue to read "For single use only."