Pfizer stopped using pharmaceutical wholesalers that have traditionally supplied drugs to dispensing practices, and switched to a single supply firm earlier this year (Drug cost increases for dispensing GPs - GP, 9 March).
The move brought to an end discount deals the practices had negotiated with wholesalers, and cut practice profits.
Dispensing practices have responded with a partial boycott of Pfizer products.
'Every practice will have reviewed their use of Pfizer drugs and if there are changes they can make without affecting patient care or the cost to the NHS, they are likely to do so,' said Dr David Baker, chief executive of the Dispensing Doctors' Association (DDA).
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