I would give a triple-dose of pyrantel to the mama and pups too. You can give this at large doses safely.

I had a bitch on pups that I wormed with ivermectin and pyrantel at standard doses also. Yet even after worming her with two products, she still looked skinny and so did her pups.

So I decided to triple-dose her with pyrantel (and her pups), gave a double-dose of ivermectin to her (alone), and gave her and the pups a standard dose of piperazine, and three days of double-dosing fenbendazole.

That poor bitch shit-out nothing but worms for nearly 3 straight days

Moral?

Using standard doses of worming medicine often will NOT stop heavy worm infestations at all ... and you need to take stronger measures.

Jack