The dosages for each weight range contain double the active ingredients, e.g. small has 18.8mg of afoxolaner, medium had 37.5mg, large had 75mg.
A pack of 6 medium costs ~$80 when a pack of 6 large cost $90.
Could I theoretically buy the large size for my medium dog and cut the chews in half and save a significant cost per month?
I recall, my vet @25 years ago said I could do this albeit with a Flea product, Frontline?
Of course the main thing we pay for is packaging with a product.
Yes, I do this with 60kg dog doses, I divide it into two portions for my 30kg dog. It virtually halves the price as the cost for the 30kg doses is almost the same as the 60kg doses.
Frontline is okay, I've done this for years, bought the large dog and used a needle and syringe to get the correct amount for a small cat, having looked up the correct dosage. But not all products can be adapted this way, best to check with vet.
I thought you could only do this with Advantage - use for both cats and dogs. I thought Frontline for dogs is completely different formula ingredients to frontline for cats, and should never be shared.
Only Advantage is safe to use like that.
Not with chews. The active ingredient is not distributed evenly.
Don't split the chews or you risk overdosing your dog
The large chews have 75mg, but that doesn't mean that each side has 37.5mg; one side might have 10mg and the other 65mg, they don't distribute it evenly
As a general rule any scored tablet is fine to split to lower dosage, and most worming/flea chews/tablet can be split to give in small pieces if a dog is fussy, but never split a higher dosage tablet/chew into a lower dosage otherwise
If cost is a concern, then switch to a dedicated wormer and a dedicated flea-prevention routine, you're paying a huge convenience-fee for Nexguard Spectra
you're paying a huge convenience-fee for Nexguard Spectra
You're also getting tick protection. When I last looked at options there wasn't any/much saving to be had getting individual medicines for everything covered by Nexguard Spectra.
The real cost is flea + tick protection, where generics are only really able to provide 1 month of flea protection and 2 weeks of paralysis tick protection
But 3-monthly intestinal worming tablets are incredibly cheap with insane profit margins as the main ingredients are generic; they come out to under $2 each if you buy in bulk through a supplier, or about $4 each if you buy a pack of 4 given that most people can't get through 100 worming tablets before they expire
I did the math for our 26KG female Labrador (YMMV), and the cost of using NexGuard over separate treatments was about $40 a year. Doing the math again now, NexGuard Purple is $184 for 12 months (www.vetsupply.com.au/nexgard-spectra-large-dogs-15-1-30kg-pu…), compared to $16 for worming (www.ebay.com.au/itm/255415293921) and $130 for flea+tick (www.vetsupply.com.au/flea-and-tick-control/bravecto-spot-on-…)
So despite using the best flea+tick protection that money can buy, and only having to deal with applying protection 4x instead of 12x, it's still $38 cheaper
https://www.petcircle.com.au/discover/can-you-split-parasite…
https://www.ticknflea.com/wp-content/uploads/2020/07/nexgard…
Seems not. Check with your vet.