Patient information for NOLVADEX D Including dosage instructions and possible side effects. Manufactured by: AstraZeneca UK Limited, UK. Procured from. AstraZeneca plans to stop selling the breast-cancer drug tamoxifen by the end of June because of declining sales. AstraZeneca is discontinuing US sales of its cancer drug Nolvadex (tamoxifen) from June, after mounting competition from generic products has. Watson Laboratories per manufacturerCorona, CA, We cannot provide detailed information about our prescription medicines on this website, in compliance with regulations. IUPAC name. Clinical trials on angiogenesis inhibitors have been underway since using many different drugs. How to take Tamoxifen 4. Partner with us.