Treatment outcomes of chemical castration on Korean sex offenders

Kyo Chul Koo, Geum Sook Shim, Hyoun Hee Park, Koon Ho Rha, Young Deuk Choi, Byung Ha Chung, Sung Joon Hong, Jae Woo Lee

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18 Citations (Scopus)


After the recent enactment of the chemical castration legislation for sex offenders in Korea, we sought to report primary treatment outcomes for 38 patients at the National Forensic Hospital since 2011. After chemical castration, these patients experienced reductions in frequency and intensity of sexual drive, frequency of masturbation and sexual fantasies. The incidence of adverse effects was similar to that of previous reports. Serial hormonal evaluations showed an association between testosterone level and degree of paraphilic and non-paraphilic sexual thoughts. A notable finding was an unexpected upsurge of testosterone levels with intense sexual drive and fantasy observed during the first 2 months after cessation of treatment. This suggested the need for a temporary anti-androgen therapy or close surveillance during this period. When proper precautions are taken, chemical castration may be an effective treatment strategy for paraphilic and non-paraphilic sex offenders.

Original languageEnglish
Pages (from-to)563-566
Number of pages4
JournalJournal of Forensic and Legal Medicine
Issue number6
Publication statusPublished - 2013

Bibliographical note

Funding Information:
On behalf of the Ministry of Justice, Korea, authors gratefully acknowledge the support and guidance of F.S. Berlin in support with establishing ‘chemical castration’ protocols.

All Science Journal Classification (ASJC) codes

  • Pathology and Forensic Medicine
  • Law


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