Friday, February 6, 2015

Veterinary Highlights: Interceptor Returns under Elanco

Jasmine was on Interceptor her whole life. I liked it because it had only one, relatively benign ingredient, didn't treat anything other than what we were trying to treat and Jasmine never had any problems with it.

As the news broke that Interceptor wasn't going to be available, we stocked up for as long as the expiry allowed. 

Particularly with all her issues I did not want to change drugs on her.

After her passing we still had some left to start using it of Cookie. Eventually we did run out and the product was nowhere to be found any more. Because Cookie is a healthy young dog, we switched her to the same product JD was on.

Discontinued by Novartis, Interceptor should once again become available this spring, this time under new owner, Elanco.

I'm not sure whether or not I'll be switching back to it, but I'm glad it'll be out there.

Source article:
Interceptor Heartworm Drug Returns Under Elanco


  1. I loved this medication. My dog was on it his entire worked wonderfully and we never had any issues. Glad to hear it's coming back! :-)

    1. Yes, I did too. Contemplating whether or not to switch back to it.

  2. Great news, I also stocked up on Interceptor and was really disappointed when I ran out and had to switch medications. I then switched to Iverhart Plus which I didn't care for because it was hard to get Haley to eat them (no matter how I tried to disguise the chewable pills).

    I then switched to Heartgard Plus which I've been pretty happy with. Haley eats them readily and has no adverse effects. I'm wondering about whether I should switch back now to Interceptor too.

    1. Yeah, we're using Heartgard Plus now too. And I am also contemplating whether or not to switch back.

  3. Awesome! I was an Interceptor devotee and will certainly switch back as long as it's the same formula.

  4. Have had all of my dogs on Interceptor for over 20 years - never an issue. I too stocked up but when I ran out I found that I could buy Interceptor Spectrum from Note they have partnered with a company, Our Pet World, which is based in Singapore which I will not buy from them. When you go to you can choose to go to vetproductsdirect instead of our pet world. The interceptor spectrum has 2 active ingredients. Since the praziquantel is the same drug that is in the yearly oral dewormer drontal plus which my dogs get I felt this product safe enough to use monthly. I confirmed this with my vet first. While I am not so trusting that I think every vet is a winner, I do trust the vet I take my pets to see. Hope this helps. took the info below from the Novartis web page. For me, I'll continue to use the supply I have stocked up on from vetproductsdirect until I see how Elanco handles interceptor in the US. I'm just not a trusting person to jump back to the US company (Elanco) until I see if there are any issues with them. I hope not.
    Interceptor Spectrum Tasty Chews active ingredients are milbemycin oxime and praziquantel.

    Milbemycin oxime interferes with nerve transmission in invertebrates, which helps protect against heartworm, roundworm, hookworm and whipworm (minimum dose rate: 0.5mg/kg).

    Praziquantel causes muscle spasm in tapeworm, which are then attacked by enzymes and disintegrate (minimum dose rate: 5mg/kg). It kills all intestinal forms of tapeworm except Spirometra spp, which require a higher than standard dose rate.


    Interceptor Spectrum Tasty Chews prevent heartworm (Dirofilaria immitis) and control roundworm (Toxocara canis, Toxascaris leonina), whipworm (Trichuris vulpis), hookworm (Ancylostoma caninum, Uncinariastenocephala) and adult tapeworm (Echinococcus granulosus, Dipylidium caninum, Taenia pisiformis) in dogs.