- My Forums
- Tiger Rant
- LSU Recruiting
- SEC Rant
- Saints Talk
- Pelicans Talk
- More Sports Board
- Fantasy Sports
- Golf Board
- Soccer Board
- O-T Lounge
- Tech Board
- Home/Garden Board
- Outdoor Board
- Health/Fitness Board
- Movie/TV Board
- Book Board
- Music Board
- Political Talk
- Money Talk
- Fark Board
- Gaming Board
- Travel Board
- Food/Drink Board
- Ticket Exchange
- TD Help Board
Customize My Forums- View All Forums
- Show Left Links
- Topic Sort Options
- Trending Topics
- Recent Topics
- Active Topics
Started By
Message
Has anyone heard about Ivermectin resistance in our area?
Posted on 5/18/25 at 7:16 pm
Posted on 5/18/25 at 7:16 pm
I recently got a new puppy, and after talking with my veterinarian, she mentioned something interesting — she’s been seeing cases where dogs are becoming resistant to ivermectin, meaning it’s not as effective against heartworms anymore. I started my puppy on the ivermectin tablets (for dogs up to 25 lbs) the day I got her, but my vet recommended switching to either Interceptor or the ProHeart injectable once she’s old enough. She also suggested using NexGard Plus for heartworm, flea and tick protection. She wasn’t trying to push any specific products — just giving me her honest recommendation.
Has anyone else heard about or seen this happening around here? She said it’s been more common in the Mississippi and Louisiana region.
Edited to add ...
I usually give my dogs Bravecto for flea and tick prevention—it’s a one-time dose every three months and it seems to work really well. This is alongside the monthly ivermectin I give for heartworm. For those of you using NexGard Plus, have you noticed any adverse reactions or side effects with your dogs?
Has anyone else heard about or seen this happening around here? She said it’s been more common in the Mississippi and Louisiana region.
Edited to add ...
I usually give my dogs Bravecto for flea and tick prevention—it’s a one-time dose every three months and it seems to work really well. This is alongside the monthly ivermectin I give for heartworm. For those of you using NexGard Plus, have you noticed any adverse reactions or side effects with your dogs?
This post was edited on 5/18/25 at 7:19 pm
Posted on 5/18/25 at 7:18 pm to Will Cover
It's not the Ivermectin they are resistive too, it's the amount they are allowing for "recommended dosage". Making it weaker and weaker
Posted on 5/18/25 at 7:18 pm to Will Cover
The democrats have started engineering our pets to be resistant to ivermectin post covid. Same class of people who are trying to turn the frogs and our daughters into lesbians. Not good!
Posted on 5/18/25 at 7:19 pm to Will Cover
If it’s ok, I’ll blame Fauci.
Posted on 5/18/25 at 7:20 pm to Will Cover
quote:
she’s been seeing cases where dogs are becoming resistant to ivermectin, meaning it’s not as effective against heartworms anymore
bullshite
1/10cc per 10 lbs once a month will have any dog living till something other than heartworms kill it
Posted on 5/18/25 at 7:20 pm to Will Cover
Ask her if she's vaccinated.
Posted on 5/18/25 at 7:20 pm to Barneyrb
quote:
It's not the Ivermectin they are resistive too, it's the amount they are allowing for "recommended dosage". Making it weaker and weaker
Interesting. I didn't realize this. I buy my dog medicine overseas, and the recommended dosage for up to 25 lbs. is 68 ug, which is 1 tablet (.068 milligrams).
Posted on 5/18/25 at 7:22 pm to Barneyrb
This is somewhat true. The doses in commercial dog products are very very low.
I just give 0.05ml of 1% per 10 lbs once a month. The “baw recommended” dose is 0.1 ml per 10 lbs, but I have German shepherds, and 0.05 ml per 10 lbs is already orders of magnitude more than the commercial products.
I just give 0.05ml of 1% per 10 lbs once a month. The “baw recommended” dose is 0.1 ml per 10 lbs, but I have German shepherds, and 0.05 ml per 10 lbs is already orders of magnitude more than the commercial products.
Posted on 5/18/25 at 7:23 pm to High C
quote:
If it’s ok, I’ll blame Fauci.

Posted on 5/18/25 at 7:26 pm to Will Cover
My vet told me something similar almost 15 years ago.
Posted on 5/18/25 at 7:33 pm to Will Cover
I’m not aware of Ivermectin resistance, but my Charlie dog is on ProHeart
Posted on 5/18/25 at 7:34 pm to Will Cover
Ivermectin resistance was confirmed in southwest La more than 10 years ago.
Posted on 5/18/25 at 7:34 pm to Will Cover
quote:
Has anyone heard about Ivermectin resistance in our area?
Holy shite…I have taken about “half a horse” monthly for the past 5 years…I don’t know if my intestinal tract can take much more…
Posted on 5/18/25 at 7:40 pm to Spankum
That apple flavor they have at tractor supply is great with whiskey.
Posted on 5/18/25 at 7:50 pm to Will Cover
Nexgard put my 13 year old lab mix into liver failure...I would be very careful with it....I kept telling the vet she wasn't doing well with it and thats whi I had quit giving to her ....and he said it wasn't the meds....I restarted it and it was the meds, and it killed her 2 weeks later.
Posted on 5/18/25 at 8:00 pm to Tigahs24Seven
I am sorry to hear this. That is terrible news. I may look more into the Proheart injectable and stick with Bravecto 1 x every 3 months for flea and tick prevention.
Posted on 5/18/25 at 8:06 pm to Will Cover
I use NexGuard. I give it to two Labs. Both about 20 months old. No issues at all.
Posted on 5/18/25 at 8:08 pm to Will Cover
Just do the injectable, it’s once a year
Every vet I’ve been to recommends it
Every vet I’ve been to recommends it
Posted on 5/18/25 at 8:10 pm to Will Cover
How much more money do vets make off the other drugs? I would assume profit has something to do with the efficacy of ivermectin.
Posted on 5/18/25 at 8:27 pm to Will Cover
quote:
She wasn’t trying to push any specific products
Of course not. She was telling you the one you are using isn't working in this area and suggested specifically NexGard Plus.
Honestly, I don't know anything about this one way or the other, but they all have a preferred type they recommend you use.
Popular
Back to top
