dvm360: Court orders seizure of PetArmor products; upholds Merial patents | NewsLetterTree
Anything in the store besides Frontline and Advantage products are unsafe. Fronline, Frontline Plus, Advantage, Advantage II, Advantix, Advantix II, Revolution, Comfortis are the major ones now. Some better than others. Not all cover ticks. I wouldn't go with an off brand.