This excerpt taken from the MDVN DEF 14A filed Apr 30, 2009.
Code of Ethics
The Company has adopted a written code of business conduct and ethics that applies to its principal executive officer, principal financial officer, principal accounting officer or controller, or persons serving similar functions. The code of business conduct and ethics is available on the Companys website at www.medivation.com. If we make any substantive amendments to our code of business conduct and ethics or grant to any of our directors or executive officers any waiver, including any implicit waiver, from a provision of our code of business conduct and ethics, we will disclose the nature of the waiver or amendment on our website or in a Current Report on Form 8-K.