Privermectin pour on same as Ivomec pour on? And withdrawl ?s

[rubyrogue]

I went to the feed store yesterday to get Ivomec pour on to treat the new birds that someone dumped that have scaley leg mites and body mites/lice. They had ivomec pour on but it was 70bucks they also had this privermectin pour on that was only 30. I read the boxes and they treat the same things but could not find the amount of medicine in the ivomec to compare. The privomectin says it has 5mg per ml is this the same thing? Here is a link for drugs .com for privermectin.
http://www.drugs.com/vet/privermectin-pour-on-for-cattle.html
Also how much do I use? I have standard hens. And what is the egg withdrawl time when using it?

 

[SundownWaterfowl]

Looks like the same thing. Both contain 5 Mg Ivermectin/ml
http://www.drugs.com/vet/ivomec-pour-on-for-cattle.html


Heres dosage info. https://www.backyardchickens.com/forum/viewtopic.php?pid=5664083

https://www.backyardchickens.com/forum/viewtopic.php?id=172967