This is how I do it.You can use this info how you wish.
Iam no expert by any means. I have raised Dairy goats for 14 years.
This is the info I give to new goat owners that buy goats from me to get them started.
There are three types of wormers
1. Avermectin Ivermectin such as Ivomec Dectomax,Cydectin,quest.Give it ORALLY even the injectable.Oral worming with these wormers are best due to the goats fast acting metabolism.
For lice you can inject 1cc Ivermectin1% subQ (under the skin)
dosage for 1% Ivermectin Orally is
up to 50 lbs 1cc
51-100 lbs 2cc
over100lbs 3cc
2. Benzimidazoles known as the white wormers,such as Valbazen,Safeguard/Panacur,Synanthic,Telmin,Benzelmin,Anthelcide.
DO NOT TREAT PREGNANT DOES WITH VALBAZEN It is known to cause abortions.
3. Imidazothiazole known as Tramisol,Levasol,Pyrantel,Morantel,( Pregnant does may abort with Tramisol)
Give Paste wormers at 3 times the goats weight.If the goat weights 100 lbs. then you dose for 300lbs.
The pour ons do not work well for goats due to their thin hides.Wears off too fast.