§ Mr. Sackville
The percentage of all adverse drug reactions reported by general practitioners is not known, as there is no means of knowing the total number of adverse drug reactions. A recent survey found that 77 per cent, of general practitioners have used the yellow card reporting scheme. Of 17,635 reports received in 1994 through the scheme, approximately 63 per cent, originated from general practitioners. Most of the remainder were reported by hospital doctors and pharmaceutical companies.