Have Cat Questions? Ask a Cat Vet Online.
Hi, I'm Dr. Peter. Welcome to JustAnswer. I'm reviewing your question now, and will post back with your reply ASAP.
Welcome! Thanks for asking your question. My name is***** am a licensed veterinarian and I will be assisting you today. First I need to ask you a few questions so that I can be well informed and give you the best advice.
1- What seems to be the problem?
1- What medications are you currently using?
2- What have you used before?
1- How long since the last time they were treated?
2- Are they strictly indoors?
Friend, it will be difficult for me to make any kind of recommendation without knowing the names of the medication. I would recommend you phone your family veterinarian so that you have all the information on hand for me or any other vet you are chatting with to be able to make a plan for you. I am going to opt out as I will be leaving shortly and I am not certain at what time I will be back, I am sorry. You can either re-post a new question when you have the names of the medication on hand or wait for another expert to follow on this thread. I am sorry.
I'll follow up for Dr. Peter for you. I suspect that the pill that works for a month was in the spinosad class of insecticides such as Comfortis. All of the oral products for cats are excellent flea killers and should obviate the need to use a topical at all. I would prefer that you didn't if for the only reason that cats will ingest them while grooming. Most important - your house is infested. There may not be a lot of live fleas but there will be thousands of flea eggs and larvae that will become adults. It's essential that you either have a professional fumigator come in or treat your premises yourself with an area treatment spray that contains an insect growth regulator (IGR) such methoprene found in Siphotrol Area Treatment Spray available over the counter in pet/feed stores or online. IGRs don't allow flea eggs and larvae to develop into adult fleas thus breaking up the flea's life cycle. Avoid the inefficient foggers; they don't reach under furniture or into the tiny cracks in flooring and under baseboards.
In particularly severe cases, your cats should be administered nitenpyram (oral Capstar, available over the counter in pet/feed stores or online) every 24 to 48 hours for 4 weeks in conjunction with environmental treatment as I mentioned above. You can win this battle if you treat both your cats and premises concomitantly. Please continue our conversation if you wish.