If you are just going to be in the city, you won't have to worry about ticks so I'd stick with Advantage. It really is the safest out there and does a great job on fleas. Advantix contains permethrin which can be deadly to cats and can cause a serious reaction in small dogs so I'd avoid it. Frontline Plus is a better choice IMO if ticks are an issue since it doesn't contain permethrin. |