Dr. Mark Craddock, of Sydney, Australia, has been banned from practicing medicine after prescribing chemical castration to an 18-year-old man to ''cure'' his homosexuality.

Dr. Craddock is a member of the Exclusive Brethren Christian sect, as was the unidentified young man at one time.

Dr. Craddock wrote the teen a prescription for anti-androgen therapy cyproterone acetate [Cyprostat] during a consultation in February 2008, reports smh.com.au.

The drug reduces the amount of testosterone and is usually used to treat prostate cancer and severe male sexual disorders.

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