Effects of Cyproterone Acetate on Testes in Dog
World Small Animal Veterinary Association World Congress Proceedings, 2003
Mashhady Rafie, Siamak; Sohrabi Haghdoost, Iraj
The Clinical Science Department, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman
Kerman, Iran

Objective

Cyproterone acetate (CPA) is an antiandrogen might be used on treatment of benign prostatic hyperplasia in dog. Administration of CPA can induce side effects on other tissues like testes.

Materials & Methods

Four dogs with 25 Kg body weight were selected. Dogs were received CPA (androcur) 2 mg/Kg SID orally for 60 days. Thus they were castrated and were evaluated histopathologically.

Results

Pathologic changes of testes in all samples include degeneration of seminiferous tubules and severe decrease in spermatogenesis. All dogs showed increase in appetite and body weight.

Conclusion

Degeneration of seminiferous tubules is probably due to effect of CPA on testosterone metabolism, so that concentration of dihydrotestosterone were decreased in testes tissue. Dihydrotestosterone is responsible for spermatogenesis. Administration of CPA 10-20 mg SID in men has not been caused significant side effects, but with 100 mg has been caused decrease in libido, gynecomastia, lethargy and increase in body weight.

Speaker Information
(click the speaker's name to view other papers and abstracts submitted by this speaker)

Siamak Mashhady Rafie
The Clinical Science Department, Faculty of Veterinary Medicine
Shahid Bahonar University of Kerman
Kerman-Iran and Faculty Member of Veterinary Medicine
Tabriz Azad University
Tabriz, Iran


MAIN : Reproduction : Cyproterone Acetate
Powered By VIN

Friendly Reminder to Our Colleagues: Use of VIN content is limited to personal reference by VIN members. No portion of any VIN content may be copied or distributed without the expressed written permission of VIN.

Clinicians are reminded that you are ultimately responsible for the care of your patients. Any content that concerns treatment of your cases should be deemed recommendations by colleagues for you to consider in your case management decisions. Dosages should be confirmed prior to dispensing medications unfamiliar to you. To better understand the origins and logic behind these policies, and to discuss them with your colleagues, click here.

Images posted by VIN community members and displayed via VIN should not be considered of diagnostic quality and the ultimate interpretation of the images lies with the attending clinician. Suggestions, discussions and interpretation related to posted images are only that -- suggestions and recommendations which may be based upon less than diagnostic quality information.

CONTACT US

777 W. Covell Blvd., Davis, CA 95616

vingram@vin.com

PHONE

  • Toll Free: 800-700-4636
  • From UK: 01-45-222-6154
  • From anywhere: (1)-530-756-4881
  • From Australia: 02-6145-2357
SAID=27