This provides a list of common dog tick medication products and how they work. (dog-health-guide.org)
Simply put, over-the-counter flea and tick medications for cats are dangerous. (wildernesscat.com)
We would recommend that this indoor / outdoor cat be put on flea / tick medication as well as heartworm prevention that would cover both heartworms and intestinal parasites. (statecollegevethosp.com)