I apologize for not remembering who I copied this info from
But. The safeguard goat de wormer is about 34$ off Amazon. The Valbazen is available from Valley Vet, but more expensive for the bottle and takes a bit longer to get.
You might also check pricing at your local feed stores- they are sometimes less expensive than ordering online.
I’ve not done the “per dose” math. But here is an “abridged” reply that I’ve saved from another thread :
“I would get some Valbazen or SafeGuard Liquid Goat Wormer, or the SafeGuard Equine Paste to worm your chickens. Those are safe and proven wormers. Dosage of Valbazen is 1/2 ml for a standard size chicken given orally once, and repeated in 10-14 days. That treats most chicken worms except the more rare tapeworms. SafeGuard dosage is 1/4 ml per pound given orally for 5 consecutive days. You can give it once and then repeat in 10 days for roundworms only.”
“There is a small amount of wormer that is found in the egg, so if you don’t want to eat that you should use a 14 day egg withdrawal after using either one. Some people have been known to ignore that, but don’t share or sell eggs during the withdrawal time. Albendazole, the ingredient in Valbazen, is used in humans to treat worms as well.”