Duorein is a natural blend of these special herbs. Herbal diuretics are beneficial because they work naturally with the horse’s system. This is important as it allows you to use the product when it is illegal to use injectables.

The use of Duorein will not cause any intervention by government regulatory agencies. The product is provided in a ready to use oral applicator which allows you to store it until you are ready to administer. Feed to the horse 6-8 hours before a race or competition.