Fought the same thing last year. Give them 3 cc of albon a piece every day for 10 days. Go to the vet and get albendazole wormer. The albendazole wormer I got from my vet last year said 1cc per 25lbs. So 1cc is definitely plenty. Give it for 5 to 7 days in a row. This turned mine around. You got to worm them more than normal because of how bad hooks can get.

Throw wormer away get some more or different. Had same happen couple yrs ago and bought new wormer, dogs looked find all of sudden same thing happen. Got bad batch of wormer. Got another bottle same kind wormed pups and they started passing a lot of worms. Saved other 3 pups lost 2.

Yea the hooks have become resistant to the pyrantel. You have to use liquid sa***aurd or panacur(same thing). 2 1/4 cc per 10 lbs is the dosage. A little extra wont hurt in a serious situation as yours.