Proactive. Sensitive. Solutions. For the treatment & control of roundworms. Pro=Sense Roundworm Dewormer Solutions is an easy-to-administer liquid dewormer. Simply follow the steps below to treat your cat or kitten (6 weeks or older). www.prosensepet.com. Questions or comments? Call 1-800-645-5154 or visit our website at www.prosensepet.com.