Major
Apixaban × Escitalopram
Direct oral anticoagulants (factor Xa inhibitors)×Selective serotonin reuptake inhibitors (SSRIs)
Mechanism
Escitalopram (SSRI) depletes the platelet serotonin pool, impairing primary haemostasis. Apixaban inhibits factor Xa. Combined, GI bleeding risk rises 1.5- to 2-fold.
Symptoms
Gum bleeding, epistaxis, bruising without trauma, black tarry stools, blood in urine. Severe cases include gastrointestinal or intracranial haemorrhage.
Management
The combination is acceptable. PPI cover with pantoprazole is mandatory. Alternative antidepressants with minimal platelet effect: mirtazapine or agomelatine.