D Williams1, M Singh, C Hind. 1. Department of Clinical Pharmacology, Aberdeen Royal Infirmary, NHS Grampian, Aberdeen, UK. david.j.williams@arh.grampian.scot.nhs.uk
Abstract
BACKGROUND: Concerns have been raised regarding the cardiovascular safety of the COX-2 inhibitors. In September 2004, rofecoxib was withdrawn from the market as a result of concerns regarding its cardiovascular safety. AIMS & METHODS: We set out to examine the effect of the withdrawal of rofecoxib on the prescription of other COX-2 inhibitors and nonselective nonsteroidal anti-inflammatory drugs (nsNSAIDs) in Scotland, using a national prescription database. RESULTS: The withdrawal of rofecoxib led to an initial increase in the prescription of celecoxib as prescribers presumably switched to this alternative agent. However, this rise was short-lived, presumably as a result of concerns that the safety concerning rofecoxib may be a class effect. A parallel increase in the prescription of diclofenac and ibuprofen was also noted, suggesting that prescribers were prescribing these medications as alternatives to COX-2 inhibitors. CONCLUSIONS: While prescribers and their patients may have initially interpreted safety concerns regarding rofecoxib to be drug specific, prescribers appear to have interpreted this effect to be class specific.
BACKGROUND: Concerns have been raised regarding the cardiovascular safety of the COX-2 inhibitors. In September 2004, rofecoxib was withdrawn from the market as a result of concerns regarding its cardiovascular safety. AIMS & METHODS: We set out to examine the effect of the withdrawal of rofecoxib on the prescription of other COX-2 inhibitors and nonselective nonsteroidal anti-inflammatory drugs (nsNSAIDs) in Scotland, using a national prescription database. RESULTS: The withdrawal of rofecoxib led to an initial increase in the prescription of celecoxib as prescribers presumably switched to this alternative agent. However, this rise was short-lived, presumably as a result of concerns that the safety concerning rofecoxib may be a class effect. A parallel increase in the prescription of diclofenac and ibuprofen was also noted, suggesting that prescribers were prescribing these medications as alternatives to COX-2 inhibitors. CONCLUSIONS: While prescribers and their patients may have initially interpreted safety concerns regarding rofecoxib to be drug specific, prescribers appear to have interpreted this effect to be class specific.
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