Harsh laxatives can cause as many problems as they fix. When your pet is suffering from constipation, Vetasyl may be right for you and your kitty or pup. It's a natural fiber supplement that helps relieve constipation. Vetasyl contains no salts or sugars and is 100% natural. Vetasyl capsules are formulated without the use of preservatives, artificial flavors, or colors. Your pet will feel better and you'll be happy knowing you're using a natural supplement.