It is generally not recommended to feed deworming drugs to dogs after they are pregnant to avoid causing adverse reactions during pregnancy. Because dogs are very weak during pregnancy, anthelmintics may cause stress reactions such as vomiting and diarrhea, which may cause damage to the fetus, and in severe cases may cause miscarriage. If the parasitic infection is serious, it is best to use anthelmintic drugs outside the body for deworming. The anthelmintic drugs used outside the body will cause relatively little damage to the dog's body, making it easier to protect the fetus in the dog's body. During the dog's pregnancy, the owner should also do a good job in raising and managing the dog, giving the dog enough nutrients to improve the physical fitness of the fetus.

Precautions for deworming dogs during pregnancy:

1. External deworming. You can choose to use external anthelmintics that do not act through blood circulation. Anthelmintics that are absorbed through sebaceous glands have a higher safety index.

2. Internal deworming. You can choose topical drops that are less irritating to get rid of internal parasites.

3. Reduce going out. During pregnancy, try to reduce outdoor activities and avoid going to places with many parasites such as grass and bushes.

4. Avoid feeding raw or cold food. Avoid dogs and cats from eating and licking indiscriminately, and do not feed raw meat or other raw or cold food to dogs and cats to reduce the entry of insects from the mouth.

5. Clean environment. It is necessary to disinfect and kill the living environment, clean the dog's supplies regularly, and clean the home frequently.

6. Feed probiotics. If the dog suffers from loss of appetite, vomiting and diarrhea after deworming, the owner can feed it some probiotics.