My dogs have been taking plain IVM for dogs for years. It’s pure IVM without any of the junk they like to push. I get it at CanadaVet. It’s a fraction of the cost of what you get at the Vet if you can get it. My Vet doesn’t even sell it. The IVM I get at CanadaVet is generic Heartgard IVM without the Plus. You don’t have to guess at the dosage like you would if you gave them the horse paste. I have small dogs and it would be difficult to get the dosage right.
https://www.canadavet.com/dog-supplies?cat=338
I have been making my dog’s heartworm meds for about 15 years using the 1% cattle injectable. I had my farm vet double check my numbers to make sure my recipe yields the same percentages as heartguard and such.
The recipe is 30ml propylene glycol to 1ml 1% ivermectin. Mix well and refrigerate.
I use a 1 ml syringe and give orally:
6 to 12 pounds: 0.1 ml
13 to 24 pounds: 0.2 ml
25 to 36 pounds: 0.3 ml
37 to 48 pounds: 0.4 ml
49 to 60 pounds: 0.5 ml
62 to 72 pounds: 0.6 ml
73 to 84 pounds: 0.7 ml
85 to 97 pounds: 0.8 ml
98 to 109 pounds: 0.9 ml
110 to 121 pounds: 1 ml
You can also use vegetable oil instead of PG, but it does not keep as well.
Every so often my vet will still run a heartworm check, but we have had no issues. Just remember that the same warnings for heartguard apply - can cause seizures in certain breeds.
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TYVM