Castration Versus Esterilsol (its precursor Neutersol) -- Ark Sciences

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For us, the welfare of animals is our passion and our life’s work. To that end, Ark Sciences has introduced two innovative non-surgical sterilization solutions into the marketplace. Testrin™ is designed for livestock while Esterilsol™ is approved for use in dogs and cats. Take a look below for more information on these groundbreaking products.

Castration Vs. Esterilsol
(Assuming trained and experienced practitioners for both)
Issue	Castration	Esterilsol	Esterilsol Comment
Sterilization	100%	99.6%	Permanent and irreversible
Testosterone	95% reduction	41-52% reduction	Permanent reduction
Mating Behaviors	May or may not suppress behaviors around females in estrus	May or may not suppress behaviors around females in estrus	Study underway to evaluate any differences in behavior suppression between castratoin and Esterilsol
Everyday Behavior	Controversial [1]	No studies yet	Possible behavorial issues related to testosterone elimination and full anesthesia are expected to be less
Long Term Health	Both positive and negative effects, depending on breed [2]	Formal two and five year follow-ups showed no negative effects	Health risks related to testosterone elimination are expected to be less
Full Anesthesia	1 in 1,849 healthy dogs die [3]	Not needed	Mild sedation recommended
Rate of abnormal complications	6.1%	1.1%	Worst case in US clinical study (0.4%) is scrotal ablation and in rarer cases castration
Recovery	4-6 hours	5-10 mins	Avoid excessive physical activity
Capital Investment	Surgical Facility	Table	Investment in certification training required

Less invasive than surgery...

97.7% did not vocalize upon insertion of the fine 28 guage needle as there are no pain sensors in the testes, only pressure sensors. (only 24% of puppies in the field study received a mild sedative.)

...and it’s safe.

No possibility of anesthesia death. Over 20,000 injected with no deaths. Over 98% of dogs needed no medical attention after the procedure. Two and five year follow-ups showed no non long-term effects. Adverse reaction rates of 1.1% are substantially lower than the 6.1% for surgical castration. Natural ingredients found in the supplement aisle with no preservatives.

Would you like more information about Esterilsol™? Click here to contact us today.

Are you a veterinarian who has questions about using Esterilsol™? Click here >

"Esterilsol has helped us to speed up our patient’s recovery time tenfold. Thanks again for your product."

MVZ, Samantha Maerker Salmon
Veterinary Center of Mexico
Col. Cd- de Los Desportes