Caution, This content is for veterinary professionals.


Face up to prostate problems

Ypozane® is a novel, non-invasive oral treatment containing osaterone acetate for Benign Prostate Hyperplasia in dogs – a condition which affects over 80% of entire dogs over the age of five

Prostate Hyperplasia is often difficult to diagnose until the disease has progressed to a marked increase of the size of the prostate gland.  The simple, once-daily, seven-day treatment has been shown to reduce prostate volume by 40% in just 14 days and show prolonged benefits for up to six months.


Product Features & Benefits: 

  • Available in four tablet strengths suitable for dogs weighing 3kg to 60kg

  • Simple effective course - given orally, with or without food, at 0.25 to 0.5mg/kg once daily for seven days

  • Conveniently packaged in packs of seven tablets: one box for one complete treatment course

  • Fast-acting, with 40% reduction of prostate volume within 2 weeks, and with the effects sustained for up to six months1


Presentations Available: 

  • 7 x 1.875mg tablets (3 – 7.5kg)
  • 7 x 3.75mg tablets (7.5 – 15kg)
  • 7 x 7.5mg tablets (15 – 30kg)
  • 7 x 15mg tablets (30 – 60kg)


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Use medicines responsibly.
Further information is available on the SPC or on request from Virbac Ltd.

1. O’Shea, J.D. (1962).  Studies on the canine prostate gland: factors influencing its size and weight, Journal of Comparative Pathology, 72, 321-331.
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Product FAQ

  • 1. What is Ypozane?

    Ypozane contains osaterone acetate which is an androgen receptor antagonist which blocks the action of testosterone on prostatic tissue. It is approved for the treatment of benign prostatic hypertrophy (BPH) in male dogs.

  • 2. How is it given?

    The pack of Ypozane contains seven tablets and the dose is one tablet, with or without food, once daily for 7 days. The effect of the treatment course can last at least 5 months.

  • 3. What are the dose ranges?

    3 to 7.5 kg = 1.875 mg tablet

    7.5 to 15 kg = 3.75 mg tablet

    15 to 30 kg = 7.5 mg tablet

    30 to 60 kg = 15 mg tablet

  • 4. How quickly will BPH cases respond?

    Clinical improvement including reduction in size of the prostate should be evident within 14 days with studies showing between 41% and 46% reduction at this point.

  • 5. Does Ypozane medically castrate the dog?

    No. Serum testosterone and testicular function is not significantly altered by the use of Ypozane. Dogs will remain fertile and can be used for stud whilst under treatment for Ypozane.

  • 6. Can you use Ypozane for behavioural problems?

    No. There are no benefits from using Ypozane for behavioural problems.