(Formerly known as Corta FLX)CORTA-FLX: The world's best-selling non prescription joint supplement is now clinically proven! After having been rated the #1 joint nutraceutical and Product of the Year by the Horse Journal, CORTA-RX is proud to announce the results of a recently completed Michigan State University study overseen by renowned Veterinarian Dr. Hilary M. Clayton. The study proved that DJD horses treated with CORTA-RX "showed significant reduction in gait asymmetry."
Canine Cortaflex by Ileen from Koekange, Netherlands03/15/2011
My black en brown labs çan't go up from their pillows if they don't drink this! It's amazing how good it works
Help for Pets by Psmith from Coatesville, PA11/16/2012
I use this product for my male boxer who is about 6. He has been on this for about 2 years and it really makes a difference. I love my pet and I feel terrible when he hurts. Surgery is not a good option so items like this can be a real saviour. I am very pleased with the produce. Thank you
Best product ever !! by lajoieblanche from Netherlands11/26/2011
This product works great for my Senior Great Pyrenees
very satisfied by Paul from Netherlands07/15/2012
Although we are overseas, Entirely Pets managed to have the shipment in in less than a week, while shipping cost was reasonable. we have been using the Corta RX for a little over a week now and we think a little improvement is already there, we will continue to give our dog (9 your old Berner Sennen) this product and hope she will benefit it.
happy hound by colleen04/23/2008
my black lab Sambuca was really crippled with arthritis and this formula has helped alot. It's expensive but totally worth it.
Glucosamine upset my dog's stomach, and so I had been giving him straight HA. But I decided to try this as it works great on my horses...it has smaller molecules that are supposed to be able to synthesize glucosamine in the body, as well as anti-inflams and HA all together in one tiny dose.