Are there any side effects or drug interactions associated with Crananidin? Administration of Crananidin is not associated with any known side effects in dogs. There are also no known interactions between Crananidin and any drug or other nutritional supplement in dogs. Directions For Use: Dog's Weight Tablets/Day Under 10 lbs 1/4 tablet 10-19 lbs 1/2 tablet 20-39 lbs 1 tablet 40-59 lbs 1 1/2 tablets 60-79 lbs 2 tablets 80-100 lbs 2 1/2 tablets Ingredients: Active: Cranberry Extract vaccinium macrocarpon ……. 93 mg Other ingredients: Mannitol, natural liver flavor, magnesium stearate, and sucralose.We reference Nutramax, the manufacturer, as our source of information for this product. For more information please click on the link: http://www.nutramaxlabs.com/Vet/Products/Crananidin.aspx Crananidin Urinary Tract Support 21 count bottle. I do not receive this product or any others in exchange for this article, I do get a commission for readers clicking the buy now links which helps to differ the cost of hosting this blog and I sincerely hope this article site helps you with your search for Vet Approved Rx products.