Abstract
BACKGROUND: Deep venous Thrombosis is a serious, possible life threatening event which is often ignored in psychiatric Settings. PURPOSE: In this paper three cases of deep venous Thrombosis (DVT) following the use of olanzapine and risperidone are presented. METHODS: The data of Three patients was collected from hospital records. RESULTS: The patients were in good general physical health and had no personal or familial history of DVT. The patients were not overweight (BMI < 25) but they suffered from DVT after initiating risperidone and olanzapine. CONCLUSION: Risk of DVT exists in patients under treatment with atypical antipsychotics in spite of no pre existing risk factor.