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Laura, thanks for your question. My name is Rebecca. I am a veterinarian in the US and will do my best to help.Are you referring to Medroxyprogesterone , brand name Provera?
My drug book says that medroxyprogesterone can cause fetal death and abortion.
It sounds like it should not be given to pregnant dogs, according to my resources and drug books.
It could cause her to lose the puppies, not keep them.
Please let me know if this is helpful, and if you have other questions.
I am continuing to search. The reproduction specialists I am checking with recommend checking her progesterone levels throughout her pregnancy, and supplementing progesterone if the levels fall below 2 ng/ml.
Please let me know if you are there, and seeing my responses.
Let me research that drug.What do you mean by "fall pregnant"?
There are many causes of fetal resorption besides low progesterone: certain infections, anatomical abnormalities, genetic incompatiability of the puppies to the mother, uterine irritability. It is recommended to consider a different stud dog, have an ultrasound of the uterus throughout the pregnancy as well as measure progesterone levels in dogs that have previously absorbed puppies.
If the progesterone is low they use either straight progesterone (not the long acting Provera), or Regumate (altrenogest). These should only be used when progesterone levels are being carefully monitored, and working with an experienced veterinary reproduction specialist.
If I had a breeder client with a dog that had resorbed puppies twice, I would refer them to a specialist in reproduction. Each case is different, and treatment has to be tailored to the individual dog.Have she and the male both been tested for an infection called B. canis? This can prevent successful pregnancies. In the US, breeders check for this by blood tests, in both dogs, before any breeding.
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