Sorry to be the bearer of bad news but Capstar itself is not intended to eradicate your flea problem. You have to treat your HOUSE too at the same time or the fleas will come right back. You have to wash EVERYTHING your pets come in contact with - beds, couch covers and throws, curtains, stuffed animals, pillows - any and everything your pets come in contact with. EVERYTHING! Then you have to vacuum EVERYTHING else. And you have to vacuum every other day. You can't just do a quick vacuum, you have to vacuum every nook and cranny. You have to empty your vacuum cleaner after vacuuming and throw the bag in an outside garbage can. Then treat ALL surfaces with an IGR flea spray. Then you have to use a flea prevention (Frontline, Advantage) product on your pets.
The reason capstar is "not working" for those reviewers is because the flea eggs are hatching and re-infesting your pets (and you). You have to do it all to get rid of them. Capstar is only meant to kill the adult fleas that are on the pet at the time you give the dose, it will not do anything to control the eggs on your pet or the eggs and larvae in the house. A single capsule laid by a single female flea can have up to 800 eggs in it! And they can live for months dormant in your carpets, couches, etc. So the flea fight is not won in a day or a week. It is a months long process.
It is a lot of work to get rid of fleas but if you are expecting a dose of a single product to do it, you will still have fleas.
The two times my cats have had fleas the Capstar worked perfectly, it killed off the fleas on the cats. However I had to do all of the above work (it takes me two days to completely clean the house and it takes about 30 loads of wash) to actually get rid of the fleas.
I can also say both times my cats got fleas I was not using their flea preventative. I was trying "natural" alternatives and they got fleas within two months. I hate using chemicals but unfortunately I will have to keep using them. It is better than having fleas.
Active Ingredient: Nitenpyram.
