Zoladex is a type of implant, which is inserted just under the skin of the abdomen (stomach). After it is inserted, this implant gradually releases a controlled amount of medicine as it dissolves. Two strengths of this medicine are available: a 3.6-mg implant (which dissolves over a 4-week period) and a 10.8-mg implant (which dissolves in 12 weeks).
Zoladex works by preventing the testes from making testosterone and the ovaries from making estrogen. This causes the levels of testosterone (in men) and estrogen (in women) to decrease.
(For more information on this implant, click Zoladex. This article takes a closer look at how this implant is surgically inserted, describes potential side effects, and covers important safety concerns to discuss with your healthcare provider.)
Written by/reviewed by: Kristi Monson, PharmD;Arthur Schoenstadt, MD
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National Library of Medicine (US). Hazardous Substances Data Bank (HSDB). NLM Web site. Available at: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB. Accessed June 21, 2011.
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