What is the best, Frontline, Advantage or K9 Advantage.

I have 1 dog (chihuahua) and 2 cats.

Could i just get some flea medicine for dogs and still use them on my cats?

And to save a little bit more money, could i get flea meds for dogs 21-55lbs and divide it up for my 3 pets?

Last night, I noticed a tiny bump in her fur while I was petting her fur. I dug out a tick. YIKES!! After a thorough exam, I found one more on her back, one on one of her nipples and three around her butt. I got them all off and killed them. I put some flea/tick stuff by Seargent on the back of her neck. What else should I be doing? A flea bath or something? Also, she is shedding more than usual. What’s up with that?

but the POINT of it is to be absorbed into the skin. I’m asking WHY it’s not for humans…?

I just got my first cat; his name is Duke and I love him dearly. I need to get him on a flea treatment. I know the topical skin treatments work well, but will the Frontline spray treatment penetrate his fur well enough to repel and kill fleas and ticks. I ask this because I’m trying to be economical, and it looks as if I would save an astronomical amount of money if I used the spray.

Give me your knowledge, cat owners.