I came across the following patent (US Patent 4,156,427) regarding castration: http://patft.uspto.gov/netacgi/nph-Pars ... astration)

It shows that a mix of zinc sulphate heptahydrate and tannic acid are effective for permanent castration when injected directly into the testicles.

Some quotes from the patent:

"An injectable chemical compound capable of producing sterility in male animals having scrotal testes for use in selectively controlling the exocrine function of the testes in the production of sperm and the endocrine function in the production of testosterone. Said injectable chemical compound being a physiologically acceptable astringent, preferably a water soluble zinc compound, a tannin or combinations thereof. "

"Claim 13. The method according to claim 5 wherein the animal is a human being."

"Claim 16. The method according to claim 14 wherein the amount of zinc compound and tannin in the mixture injected into each tunica vaginalis is sufficient effectively to suppress production of sperm and sufficient effectively to suppress the production of testosterone substantially."

"present treatment optionally provides a means for complete castration if it is desired to stop the production of testosterone as well as the production of sperm. This may be desired, for example, for the purpose of changing the animal's disposition or for the purpose of shrinking his sex organs."

"Six dogs weighing 15 to 22 kg and aging between 8 and 11 years were injected in each testis with 1.0 ml of a mixture containing 100.0 mg of tannic acid and 100.0 mg of ZnSO.sub.4.7H.sub.2 O [causing effective castration]."

"The data therefore indicate that the present treatment provides a safe means for castrating cattle, which in some instances provides better rate of gain and carcass quality as compared with surgical castration."

"In addition to the above, the present treatment can be used on male sheep, pigs, horses and other similar mammals having scrotal testes, including human males."

"For dogs weighing over 20 kg, the recommended dose is 1.0 ml in each testis of a mixture containing between 50.0 and 125.0 mg of tannic acid and 125.0 mg of ZnSO.sub.4.7H.sub.2 O. "

Anyway, this looks like an effective way and relatively painless way of acheiving permanent castration.

Zinc Sulphate Heptahydrate can be commonly bought in livestock supply stores as a treatment for hoof-rot. See: http://www.net-tex.co.uk/foot.htm

Tannic acid can be commonly bought in art supply stores as a dye, or for etching/lithography. See: http://www.rembrandtgraphicarts.com/13_rga_cat.html

Anyway, it looks like it might be a recipe for castration!

This indeed may work, but just ask Scottie what can go wrong about trying this method. I would advise against any do it yourself methods like this.

Christina (imported) wrote: Fri Jun 27, 2003 9:07 pm This indeed may work, but just ask Scottie what can go wrong about trying this method. I would advise against any do it yourself methods like this.

Do not notice me, I am just spreading some more Karma Points.

antonia (imported) wrote: Fri Jun 27, 2003 11:24 pm Do not notice me, I am just spreading some more Karma Points.

Yes, everybody knows: You are the good angel of the archives.

gus

Christina (imported) wrote: Fri Jun 27, 2003 9:07 pm This indeed may work, but just ask Scottie what can go wrong about trying this method. I would advise against any do it yourself methods like this.

I agree about do-it-yourself methods. On the other hand, there are not a lot of professional services at our disposal either, so I think scientific information is better than nothing.

This is NOT the same type of injection that Scottie used -- he used dl-lactic acid. Furthermore, Scottie did NOT follow the directions in the patent for dl-lactic acid castration. He overdosed (used 3cc per testicle rather than the 1cc specified) and also used 100% acid rather than the 88% specified. I believe (and he may back me up on this) that these factors contributed to the complications he experienced such as the acid eating through his scrotum.

I just think that in the spectrum of castration methods, these patents for injection methods show effective and *relatively* (compared to amateur cutters) safe methods.

But everyone must take responsibility for their own actions. Take care!

SplitDik (imported) wrote: Sat Jun 28, 2003 9:09 am I agree about do-it-yourself methods. On the other hand, there are not a lot of professional services at our disposal either, so I think scientific information is better than nothing.

This is NOT the same type of injection that Scottie used -- he used dl-lactic acid. Furthermore, Scottie did NOT follow the directions in the patent for dl-lactic acid castration. He overdosed (used 3cc per testicle rather than the 1cc specified) and also used 100% acid rather than the 88% specified. I believe (and he may back me up on this) that these factors contributed to the complications he experienced such as the acid eating through his scrotum.

I just think that in the spectrum of castration methods, these patents for injection methods show effective and *relatively* (compared to amateur cutters) safe methods.

But everyone must take responsibility for their own actions. Take care!

Splitdick,

I didn't mean to sound harsh about you post. It's very informative, and yes the reason Scottie got into so much trouble was the facts you state. I do agree that there are not enough options for those seeking castration. This method would seem much less dangerous than an amature cutter or a do it yourselfer, but it still has risks involved, more so than seeing the good doctor in Philly.

P.S. Another doctor worth checking out for castration is Dr Reed in Miami at: http://srsmiami. (http://srsmiami.com/)com (http://srsmiami.com/)

Christina (imported) wrote: Sat Jun 28, 2003 4:09 pm Splitdick,

I didn't mean to sound harsh about you post. It's very informative, and yes the reason Scottie got into so much trouble was the facts you state. I do agree that there are not enough options for those seeking castration. This method would seem much less dangerous than an amature cutter or a do it yourselfer, but it still has risks involved, more so than seeing the good doctor in Philly.

P.S. Another doctor worth checking out for castration is Dr Reed in Miami at: http://srsmiami. (http://srsmiami.com/)com (http://srsmiami.com/)

You should go too a Doctor too get your drugs from they can be very dangerous and you could get side effects from them