Can’t help on that. I am 100 percent against oral long acting flea products. Running pesticides through the bloodstream to get to the skin scares the heck out of me as to potential damage. I did give capstar to a stray cat on the past to quick kill a heavy flea load and then put Frontline on her. She had no problems but I would not want to do that on a monthly basis. Make sure your friend is getting it down to skin and not just fur. I split the dose half between the shoulder blades and half a little bit up from the tail base.
