Pill with imprint barr 904 is White, Round and has been identified as Tamoxifen Citrate 20 mg. It is supplied by Barr Laboratories, Inc.

Tamoxifen is used in the treatment of Breast Cancer, Adjuvant; Breast Cancer, Metastatic; Breast Cancer; Breast Cancer, Male; Breast Cancer, Palliative and belongs to the drug classes hormones/antineoplastics, selective estrogen receptor modulators. There is positive evidence of human fetal risk during pregnancy. Tamoxifen 20 mg is not a controlled substance under the Controlled Substances Act (CSA).