Ask the Veterinarian/Cat Fleas


Do you possibly know of any way I can get rid of fleas on my cat(s) naturally, without causing any harm?  I know essential oils can be dangerous, and I don't want to use commercial flea drops, as I am concerned about my cats licking it off of each other.

flea pyramid
flea pyramid  
It's pretty impossible to kill off fleas without some sort of chemical or hormone.
We use Program for cats, which is a product that is a natural flea hormone. But what this hormone does is sterilize the adult fleas.

So when the adult flea bites your cat (whom you have given the pill, liquid or had injected with the Program), the flea ingests the hormone (which is harmless to humans and cats) and then lays sterile eggs. These eggs fall to the floor but will never hatch. The flea passes feces, which also falls to the floor, and the larval stages of fleas that are all over, deep inside your carpets and rugs, eat this feces, and they then become unable to spin a cocoon, to morph into an adult, so then they die.

This one hormone will then eliminate two of your major flea problems- the eggs and the larvae.
The only thing that cannot be touched by the hormone are the fleas inside the cocoons, waiting to hatch. Once they do hatch into adults, they will feed again on your cats and become sterile. Since you have already killed off all of the other fleas, once these adults die, your house and cats become flea free.

I have been using a product called Sentinel, which combines Program and heartworm preventative together for over 15 yrs and none of my pets have any fleas.

Sentinel is a bit hard to get right now but it will become more available come April. For now I would start them on Program and get a bottle of Ovitrol Flea Plus spray to help knock down the adults. It also has an IGR in it as well (insect growth regulator, which is what the Program has in it).

Here are some links to read about the real problem with fleas:

I'm also including a flea pyramid so you really see where the problem lies.

I would get some Program if you can find it right away. If you start on it now, you could be flea-free by Summertime!!  

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Jana Connell RVT, CVT


PLEASE READ BEFORE SUBMITTING TO ME: I am NOT a vet and do NOT diagnose diseases. That is only for a licensed Veterinarian to do. I will give you suggestions and steer you toward calling your vet for help. You can call the vet's office and talk to the technician there or the vet at times. Don't be afraid to call them! If you have a serious issue with your pet please post it to one of the veterinarians in here- I will tell you the same thing in my answer. IF your pet is injured or in an emergency situation, CALL YOUR VET- Do not wait and post in here. Just call the vet's office and get them in to see the vet right away. Critical treatment time is lost if you seek answers here when you should have your precious pet at the vets!! Don't sit at home waiting for an answer when your pet is critically ill or injured!! I can answer most questions about small animal and wildlife care as well as small animal nutrition. I can also answer questions about all phases of dental care for small animals. I DO NOT answer questions about birds (unless it is wildlife or songbirds) or HAMSTERS/GERBILS/CHINS/GUINEA PIGS/REPTILES/FROGS/RABBITS/PET BIRDS OF ANY KIND so please submit these questions to the appropriate sections. I, as well as other experts in here, do NOT do homework questions- that is for YOU to do! Please respect these rules for all of us. Thanks!


I have over 42 years experience in the field of veterinary medicine. I specialized in small animals and did wildlife rehab for over 25 years, mostly raptors, squirrels and opossums. I am a Small Animal Nutritional Consultant with 6 certificates from Hills Pet Foods, CNM and Purina. I also specialized in Small Animal Dentistry which is a field I truly love. I also Teach Veterinary Technology to working technicians who are studying to take their California Tests to become Licensed Technicians. They have to take both the VTNE (Veterinary Technician National Exam) and the California boards.

Audubon,World Wildlife Federation, American Society of Veterinary Dental Technicians.


Licensed with California and Oregon, RVT and CVT. Certified Veterinary Dental Technician Have over 1500 logged hours of Continuing Education Credits(that means I keep up to date!).

Awards and Honors
Nominated for Expert of the Month for the last 5 years.

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