It is thought that both selective serotonin reuptake inhibitors (SSRIs) and non-steroidal anti-inflammatory drugs (NSAIDs) can cause the adverse reaction of upper gastrointestinal hemorrhage (UGIH). To evaluate differences in the probability of UGIH occurring when SSRIs, NSAIDs, or both combined are administered, the authors performed a systematic review of related articles and a meta-analysis of data in those articles, which were identified by searching the literature published between 1999 and 2012 using PubMed, Scirus, and Google Scholar. The odds ratios were calculated using the Mantel-Haenszel method. The integrated odds ratios for SSRIs only, NSAIDs only, and the combination were 1.73 (0.65-2.82), 2.55 (1.51-3.59), and 4.02 (2.89-5.15), respectively. Use of the combination resulted in an odds ratio 2.32 times higher than use of either alone. Since the combination of SSRIs and NSAIDs resulted in a significantly higher risk of UGIH than either type of drug alone, clinicians should avoid use of the combination as much as possible. If it is necessary to administer both kinds of drugs, the minimum dosage should be prescribed for the shortest time period possible, and patients, particularly elderly patients, should be closely monitored for development of UGIH and other complications.Key words meta-analyses; epidemiology; combination use; non-steroidal anti-inflammatory drug (NSAID); selective serotonin reuptake inhibitor (SSRI); upper gastrointestinal hemorrhage (UGIH) Selective serotonin reuptake inhibitors (SSRIs) are widely used in the treatment of panic and obsessive compulsive disorders in many countries, and the effects have been confirmed. Usage of SSRIs is increasing because of their low toxicity compared with classical antidepressants, which have a different mode of action.1) Thus, among the many kinds of antidepressants available, SSRIs are currently the most commonly prescribed, and their usage has steadily increased in elderly patients with depression in particular.2) However, SSRIs are reported to have some specific adverse reactions, such as upper gastrointestinal hemorrhage (UGIH).
3)Non-steroidal anti-inflammatory drugs (NSAIDs), which are widely used over-the-counter drugs, have also been shown to be associated with a risk of UGIH.1) Although SSRIs and NSAIDs are sometimes administered in combination, 4) the harmful effects of this combination have not been clarified, as the Food and Drug Administration (FDA) has not accurately analyzed the risk of UGIH resulting from combination use of SSRIs and NSAIDs.
3)Therefore, we collected data for cases of UGIH resulting from the administration of SSRIs alone, NSAIDs alone, and combination use reported between 1999 and 2012, and performed a meta-analysis in order to analyze the risk of UGIH associated with combination use of SSRIs and NSAIDs.
METHODS
Literature SearchWe searched the literature through PubMed, Scirus, and Google Scholar for articles published between 1999 and 2012 using the following terms: "NSAIDs other drug interaction," "adverse intera...