THYRO-L Powder for Horses, 1-lb -

Thyro-L Powder for Horses

By Thyro-L
Rated 5 out of 5 stars
Prescription Item

$23.87Chewy Price
$22.68Autoship Price
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About This Item


Thyro-L is a powder supplement prescribed to aid in the correction of conditions associated with a low-circulating thyroid hormone in horses. It may also be helpful in the adjunct treatment for weight loss caused by insulin resistance, as well as aid in the prevention of laminitis and hyperlipidemia—an abnormally high concentration of fats or lipids in the blood.

Proudly sourced directly from the manufacturer or their approved distributor. Guaranteed genuine and backed by the manufacturer.

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Play Video: Learn More About Thyro-L From Our Team of Experts
Learn More About Thyro-L From Our Team of Experts

ReviewsWrite a Review

Rated 5 out of 5 stars
12 Reviews
Would recommend to a friend

12 Customer Reviews

Always consult a veterinarian about your pet’s health needs. Customer reviews should not be used as medical advice.
Rated 5 out of 5 stars
By SparkleMia24 on Dec 9, 2022

metabolic senior mare

A lifetime med for my IR walker, her sugars in control with diet and exercise, powder mixes easily with soaked Timothy pellets.

Rated 5 out of 5 stars
By horsemom on Nov 16, 2022

Thyro-L worked great for my mare

This product put the blood values for my off-the-charts insulin resistant mare squarely in the normal range. Big change in her personality too

Rated 5 out of 5 stars
By Mary on Sep 10, 2022

Great product, fast shipping

I have had my mare on Thyrol-L for a few years. It helps her with her metabolic issues. I like to buy my supplement in bulk, if possible, to save money on price and shipping. Chewy was easy to order with, my vet was notified to verify the prescription quickly and it arrived fast.

Rated 5 out of 5 stars
By Bonzi on Oct 21, 2022

Great stuff

Need this for my horse Howie and Chewy has the best price for it. THANK YOU!!

Rated 5 out of 5 stars
By Janine on Sep 22, 2022

Great savings

This mixes well with some grain and my picky girl gets her medicine.

Rated 5 out of 5 stars
By fredpdx on Apr 26, 2022

best price, quick delivery

My horse has been on Thyro-L to help with metabolic problems and when I needed to purchase a new jar, I found that Chewy had it for less money than my usual sources. Approval from my vet was easily handled by Chewy and the product arrived before the tracking date. I'm thrilled with the experience.

Rated 5 out of 5 stars
By Prescription on Jun 21, 2022

Easy to use!

Easy to measure, easy to add into damp pellets or cubes, no trouble getting fat pony to eat it.

Rated 5 out of 5 stars
By VaGal on Apr 5, 2022

Thyro-L (Prescribed by my Vet)

Chewy had one of the best prices on the internet for Thyro-L, and when I ordered it, it got to me faster than my vet usually delivered! Chewy is my hero!

Rated 5 out of 5 stars
By Themucker on Dec 6, 2021

A good product

It is so convenient to get this big container of Thyrol L from Chewy, instead of going to the vet every few months for a small amount. My older, metabolic, horse has really benefitted from this. His coat is better and his muscle mass is better. I was skeptical when the vet advised testing him and starting it, but it works well.

Rated 5 out of 5 stars
By Ponylover62 on Jan 25, 2022

Great for Ponies with diabetes

My pony was overweight and sluggish. Since the vet put him on this product, he has dropped weight and is much more active.