Prophylactic Lisinopril to Prevent Anthracycline Cardiomyopathy.

Patients will be given lisinopril once a day prior to starting an anthracycline chemotherapy regimen and titrated up in a stepwise fashion, as allowed by patients blood pressure, to a target dose of 20mg daily.

Patients will be given a look-alike placebo medication once a day prior to starting an anthracycline chemotherapy regimen. They will be given a new placebo medication in a step-wise fashion over period of 1 to 3 weeks.