Pregnant bitches can be wormed using Panacur liquid wormer prior to the birth of their puppies. The recommended dose is 1ml per 1kg bodyweight, per day, from day 40 of pregnancy to 2 days post-whelping.
Puppies are born with worms, and need worming regularly to rid them of these parasites. I use Panacur Paste, as it is easy to measure and dispense as it comes in it’s own graduated syringe. The dosage is 1 graduation per 1kg bodyweight, given on 3 consecutive days. It is recommended that puppies are treated at 2 weeks, 5 weeks and 8 weeks. After that puppies should be wormed monthly until 6 months of age, then 3-monthly for the rest of their life.
I used to use Drontal wormer for my adult dogs, at the dose of 1 tablet per 10kg bodyweight. this is still a good wormer but there is also milbemax tablets which treat most internal parasites.
This ensures as far as possible that dogs are free from internal parasites.