Canberra pharmacists say their customers are being forced to wait more than four days for some medicines because of a ''direct distribution'' system adopted by drug company Pfizer earlier this year. Drug wholesalers and some pharmacists want the Federal Government to intervene to ensure patients are able to access Pfizer medicines prescribed under the Pharmaceutical Benefits Scheme within 24 hours of orders being placed. But Pfizer denied it was unable to deliver medicines on time and said it met 99per cent of orders by the next business day.