RT Journal Article SR Electronic T1 Addendum: tamoxifen (26 August 1986, p65) JF Drug and Therapeutics Bulletin JO Drug Ther Bull FD BMJ Publishing Group Ltd SP 8 OP 8 DO 10.1136/dtb.25.2.8 VO 25 IS 2 YR 1987 UL http://dtb.bmj.com/content/25/2/8.abstract AB Serious retinopathy can follow long treatment with tamoxifen in high dosage, as the data sheets mention. Patients should report any visual disturbance to their doctor.