Life-threatening neutropenia following methotrexate treatment of ectopic pregnancy: A report of two cases

To our knowledge, this is the first description of significant morbidity secondary to bone marrow suppression following methotrexate treatment of ectopic pregnancy. Most patients with ectopic pregnancy who are treated with methotrexate can expect resolution of their symptoms and a low risk of mild complications. However, serious complications after this therapy are possible and may occur even with the single-dose regimen.