"Placental fragments" refer to small pieces or remnants of the placenta, which is the organ that develops during pregnancy to provide oxygen and nutrients to the growing fetus.
Full definition
If Temaril P is administered to dogs in their last trimester, there is a high risk for premature delivery of the puppies which can lead to problems in the tonicity of the uterus of your dog, possible puppy death, and even retention
of placental fragments.
Maternal medical conditions (e.g. high blood pressure, low thyroid levels, retained
placental fragments and use of the birth control pill.)
Once your doctor diagnoses and removes the retained
placental fragments, the hormones will shift, and your body will begin to make breast milk.