Vet recommended products. Frontline, Revolution, Advantage… These are some of the safest flea prevention products. Most of what you find in a pet store is not safe and using it leaves you at risk for seriously injuring or killing your pet.
Frontline hasn’t been working for me lately. I don’t know if they changed the formula or what, but our dogs got fleas this month and frontline did nothing.
Flea populations often build up immunities to the most commonly used flea medications in an area. Your vet will probably have a decent idea about what meds are effective if you ask. I’ve been using cheap flea meds from Costco and now all my dogs have fleas, I feel really bad :/ I picked up some Capstar and Revolution, hopefully they start feeling better soon.
I haven’t seen any Revolution around here, but I have heard great things about it. I might try looking at the pet store down the road for some, or otherwise I’ll go with Advantage. It’s probably the fleas building up immunities. Every vet around here ever suggests Frontline.
I believe you need to have a prescription for revolution but I’m not 100% sure. I’ve never been able to find it anywhere besides the vets office at least.