What dewormer?

[Midwestmomma]

I was really hoping to use some leftover horse Paste that I have but it seems so complicated with chickens I tried to do the math for pyrantel in lieu of just doing a dab I wanted to know how many milligrams per kilogram do the math and then figure it out in a small syringe. I posted a few days ago because I wanted to know if chicken's metabolize the same as horses such as if give horse paste to goat off label I use a lot more per pound for a goat than I would a horse because they're different. So anyway I feel like this is getting too complicated and I'm just going to have to throw out my leftover dewormer. What's the best go to if I wanted to use ivermectin for a chicken what is the proper dosage for internal parasites. I will be deworming and working each bird I will not be putting dewormer in the water not knowing what and who got administered what and when. So each bird will be handled individually. if you give a chicken by mouth will it treat external parasites will a bird administered ivermectin under the wing as I've read be treated internally for parasites or would that only be for mites and lice?

 

[Eggcessive]

Since ivermectin has lost some effectiveness over the years in chickens, I would recommend albendazole cattle and sheep wormer 0.08 ml per pound of weight given orally and then repeated in 10 days. That is about 1/2 ml for a 4-6 pound chicken. Here is where to buy a smaller amount:
https://totaltails.shop/products/albendazole-11-36-liquid-solution/
You can also use SafeGuard Liquid Cattle Wormer or the Equine Paste 0.23 ml per pound given orally for 5 consecutive days.
Either of those has a 14 day egg withdrawal time.