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I dewormed my pregnant dog at 25 days. Is that too early for safety?

Updated on September 23rd, 2025

Pet's info: Dog | Cane Corso | Female | unspayed | 5 years and 7 months old | 130 lbs

Hello I have wormed my pregnant 50kg bitch at day 25- 30 ( only once today ) with panacur ( 25 cc ) Then after I read I should have waited to day 40! Will I have any problems with this? Thank you!!!

4 Answers

Most Helpful Answer

Sara Farmer, DVM

Answered By Sara Farmer, DVM

Veterinarian

Published on December 14th, 2019

The stage of pregnancy is mainly important because parasites that may be encysted in the muscle will migrate to the puppies at a certain day of gestation, so in order to completely prevent passing parasites to the puppies you need to deworm starting at 40 days until two weeks post-partum. Many vets recommend treating the bitch with dewormer two doses two weeks apart to take care of her intestinal parasites and then starting routine deworming of the puppies at two weeks.
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Related Answers from Veterinarians

  • Answered By Andrea M. Brodie, DVM

    Veterinarian

    Published on August 15th, 2018

    I suggest that you worm your bitch and puppies with Panacur. Worm dyour bitch at the 40th day of pregnancy, then few of days post whelping. Worm the puppies and the mother at 2, 4 & 6 weeks. The puppies should be wormed every two weeks up to the age of three months, then every 3 months thereafter.

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    1Pet Parents found this answer helpful

  • Answered By Angel Alvarado, LVT

    Licensed Veterinary Technician

    Published on March 21st, 2017

    She can get fenbendazole (Panacur), but you will need to get a dose from your veterinarian. This likely will not completely prevent parasites in the litter but may decrease parasite burden. The pups will need regular deworming until they are about 3-4 months of age. Again, you should discuss a safe and appropriate deworming protocol with your veterinarian before giving any medications.

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  • Answered By Jennifer Ladd, DVM

    Veterinarian

    Published on October 6th, 2018

    It is safe to deworm her, but ensure you get he correct product from your veterinarian. I would recommend a broad spectrum dewormer such as Drontal Plus. It is also important to ensure you deworm the pups. I like using Pyrantel at 6 and 8 weeks. most pups will get some parasites through nursing so this is an important treatment .

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    1Pet Parents found this answer helpful

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