
Frequently asked questions
Can I use Purple on my kitten? At what age?
Yes — the Purple pack is approved for kittens from 8 weeks of age, as long as they weigh at least 1.8 lbs (0.8 kg). Don’t use it on younger or lighter kittens.
My kitten is growing fast — when do I switch to the Yellow pack?
Switch to the Yellow pack (5.5–16.5 lbs) as soon as your kitten crosses 5.3 lbs. Most kittens reach this weight by 4–6 months. Weigh them at vet visits to confirm.
My cat licked the application area — is that a problem?
Once the spot-on has dried (usually within an hour), it’s safe even if your cat grooms the area. Try to distract your cat or another cat in the household for the first hour to let it dry properly.
Can I bathe my kitten after applying NexGard Spectra?
Wait at least 24 hours after application before bathing or letting your kitten get wet. After 24 hours, the active ingredients have fully absorbed and bathing won’t reduce effectiveness.
Do I need a prescription to buy NexGard Spectra?
No — SmartWay Pet Supplies ships NexGard Spectra over the counter to customers across the US and Canada. No prescription or vet authorization required at checkout.
Is it safe to use NexGard Spectra alongside other medications?
NexGard Spectra is generally compatible with most common cat medications. If your kitten is on long-term treatment for any chronic condition, check with your vet before starting NexGard Spectra.