BMJ  2005;331:529-530 (10 September), doi:10.1136/bmj.331.7516.529

Editorial

SSRIs and gastrointestinal bleeding

Gastroprotection may be justified in some patients

The first 150 words of the full text of this article appear below.

There are theoretical reasons for believing that selective serotonin reuptake inhibitors (SSRIs), widely used to treat depression, might increase the risk of gastrointestinal bleeding. Gastroprotective drugs are advocated for high risk patients taking non-steroidal anti-inflammatory drugs, another class of drug that causes gastrointestinal bleeding. What is the evidence that this advice should be extended to patients receiving SSRIs?

Serotonin is released from platelets in response to vascular injury and promotes vasoconstriction and a change in the shape of the platelets that leads to aggregation.¹ Platelets cannot themselves synthesise serotonin. SSRIs inhibit the serotonin transporter, which is responsible for the uptake of serotonin into platelets. It could thus be predicted that SSRIs would deplete platelet serotonin, leading to a reduced ability to form clots and a subsequent increase in the risk of bleeding.

We have reviewed the published database studies on the relation between SSRI use and gastrointestinal bleeding. Four . . . [Full text of this article]

Oxleas NHS Trust, Dartford, Kent DA2 7WG (Carol.Paton@oxleas.nhs.uk)

School of Neurology, Neurobiology, and Psychiatry, University of Newcastle upon Tyne, Royal Victoria Infirmary, Newcastle upon Tyne NE1 4LP

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