Categories: poison

Hormone Cream Poisoning Cats

Hormone topical creams can poison domestic cats

When I received the information in a newsletter about hormone cream poisoning cats, I thought I’d learn about cats actually biting into a tube of estrogen or progesterone cream. As it turns out, this isn’t the case. The cats are physically rubbing up against their owners and causing a transference from the inner arm (where the hormone cream is usually applied) onto the cat.

Some cats even lick the arm and are exposed to the cream that way. Women need to remember to wash their hands after applying hormone cream, as some may remain on their hands and be transferred to their cat.

Please note that hormone cream poisoning is equally dangerous to other pets that come in contact with it. It is also a danger to children. How many grandmother’s out there rock their grandchildren to sleep? Ladies, are you cradling your loved ones and accidentally exposing them to these hormones?

Please keep an eye out for the symptoms of hormone poisoning. Even the bio-identical’s can cause problems when transferred to an animal or a child.

Symptoms of hormonal poisoning in female cats mimic heat. Engorged genitals, bloody discharge and behavioral issues. Many cat owners have taken their spayed cats back to the veterinarian and at first everyone was stumped. A few cats underwent additional needless surgery by uninformed veterinarians to ensure the spaying was done properly.

Many male cats were seen with engorged breasts and hair loss. Anemia and diarrhea are the most immediate reactions when a cat is exposed to hormone cream.

Cats can recover from the initial symptoms, but the long term effects are unknown. Problems may include aplastic anemia, mammary tumors and a higher percentage of developing breast cancer.

A few ways to keep the cream away from pets and children include:

  • Wash hands after using cream;
  • Cover the area with a bandage;
  • Apply cream to inner thighs or stomach away from where children and pets may rub against it.

Please pass this article along to those you know who are on hormone replacement cream. Especially if they have pets, young children or grandchildren.

Also do all you can to make paediatricians and veterinarians aware of this. They are the first in line to see these poisonings and many have been baffled. Informing the medical profession that this problem exists may save an animal or child many expensive tests. Not to mention precious time in a diagnosis.

Listed below are a few references for additional study. You can also find much more information by going to your search engine and entering “hormone cream poisoning cats.”

Please do all you can to spread the word on this. Let’s keep our pets and kids safe.



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Hormone Cream Poisoning Cats – Note: The article has been republished and was originally published in December 2010

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Dec 11, 2010
Thanks Elisa
by: Ruth Thanks from me too Elisa for a very interesting article.
There are so many chemical products nowadays it’s frightening and I can well understand how a cat being ill could be caused by hormone cream.
We always ‘think cat’ in our house, we never wear perfume as we are conscious of their tiny lungs
and never use sprays of any sort, such as polish, when they are around.
In a way the old days before all these things were invented it was far better.
Progress always brings casualties !


Dec 11, 2010
Cats Licking
by: Michael Thanks, ELisa, for this interesting article, although it doesn’t affect me…!Cat are particularly susceptible to poisonous substances that are picked up when rubbed against because cats groom themselves so assiduously by licking themselves.

They therefore very effectively ingest the poison that might have otherwise have remained safe or safer outside the body.

There are a number of poisons that could be ingested this way. One that comes to mind is lawn fertilizer. A cat might roll in the grass and transfer the chemical to their fur and then lick it off.

Another is insecticides and flea treatments (that are sprayed on). I would never use a spray-on flea treatment as they are insecticides which are essentially nasty chemicals. See Toxic to Cats.

Cats acquire tapeworms this way by ingesting fleas. Fleas may have immature tapeworms in them (or is it the larvae, I have forgot which).


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Elisa Black-Taylor

Elisa is an experienced cat caretaker and rescuer. She lives in the US. As well as being a professional photographer, Elisa has been a regular contributor to PoC for nine years. See her Facebook page.

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