Can dogs be dewormed during lactation?

It is generally not recommended to deworm dogs during lactation, as the drug components may enter the milk and cause poisoning in the nursing puppies. However, if the parasite infection has caused significant harm to the dog's body, such as diarrhea or vomiting of worms, or gastroenteritis with symptoms like diarrhea, vomiting, and bloody stools, it is necessary to choose a deworming drug under a doctor's guidance and perform deworming promptly. Puppies can be fed artificially or helped by nursing female dogs.

1. It is generally not suitable to deworm dogs during lactation because the internal deworming drugs will enter the blood and milk through the intestinal epithelial cells. When the puppies consume the milk, they may experience poisoning. Therefore, as long as the dog does not have a pathological need for deworming, you can wait until the lactation period ends before feeding the deworming drug.

2. However, if you find that the dog has started to defecate and vomit worms, or has been diagnosed with parasitic gastroenteritis, the situation is more severe. This indicates that the parasites have caused significant harm to the dog's health. You can no longer hesitate and perform deworming directly. Common deworming drugs include犬拜宠清，海乐宠，犬心保等. Meanwhile, the puppies can be fed artificially or helped by nursing female dogs.

3. Finally, adult dogs usually require deworming every three months. It is best to perform a preventive deworming before dog breeding to avoid the awkward situation where the dog becomes ill but cannot be dewormed.