Protect your best friend from intestinal roundworms with Pro-Sense Liquid Dog Dewormer. One of the most common parasitic infections in dogs, and especially common in puppies, roundworms can cause abdominal swelling, diarrhea, vomiting and other gastrointestinal issues. Get him back on his feet fast and protect everyone in your family from potential infection with this easy-to-use liquid formula, which can be administered directly or added to his food. It’s safe for use on all dogs and puppies 6 weeks of age or older; monthly maintenance treatment is recommended to prevent reinfestation