I rarely have to medicate thank heavens was just some pullets I got that were hatched elsewhere, sent a picture of the first poop they did when they got home to the breeder, don't envy having to treat about 200 pullets to hens, but I share with my sister and a few friends too if they need it .
Just ordered a 500 mg bottle of it from Allivet.com, also the local vet will dispense it for a small dispensing fee then so much per ml. cost me 9.00 from vet to treat 6 pullets, Though I did see they are not shipping to CA for some reason
Valbazen is what they told me to use on the pullets I just got 2 wks ago as they had a heavy worm overload but can't for the life of me remember the dosage as it goes by weight so tagging the dosage queen here.
@Eggcessive
treatment is at 7-10 days for the lice/mites, to get any eggs hatching may take 2-3 to get them taken care of, I would be onery too if was getting bit all the time. You don't know how long he has been out defending for himself either. I would give him some time to relax and learn he's not in...