Available by prescription only, tamoxifen citrate (Nolvadex®) is a medication used for treating or preventing breast cancer. Tamoxifen tablets are available in two strengths -- 10 mg and 20 mg. There is also a liquid form available (Soltamox™ oral solution).
Your healthcare provider will consider several factors before determining your dosage. Some of these factors include whether you are using the drug to treat or prevent breast cancer, other medical conditions you may have, and other medications you are currently taking. For example, the recommended dose for treating breast cancer is tamoxifen 20 mg to 40 mg daily.
If the medication bothers your stomach, try taking your dose with food. It is important to take your dosage at the same time every day to maintain an even level of the medication in your blood. Potential side effects include nausea, hot flashes, and vaginal discharge.
(Click Tamoxifen for more information on using tamoxifen tablets for treating or preventing breast cancer. This article also discusses the factors that may affect your dosage and offers tips on effectively using the medication.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
Last reviewed by: KristiMonson, PharmD;
List of references (click here):
Nolvadex [package insert]. Wilmington, DE: AstraZeneca Pharmaceuticals;2006 March.
Food and Drug Administration, Center for Drug Evaluation and Research. Electronic orange book: Approved drug products with therapeutic equivalence evaluations. FDA Web site. Available at: http://www.fda.gov/cder/ob/. Accessed May 3, 2007.
Briggs GG, Freeman RK, Yaffe SJ. Drugs in Pregnancy and Lactation. 7th ed. Philadelphia (PA): Lippincott Williams & Wilkins;2005.
National Library of Medicine (US). Drugs and Lactation Database (LactMED). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?LACT. Accessed May 3, 2007.
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