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My MDR1 dog has tapeworms. Are Droncit injections or Dolpac 10 safe?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 4 years and 1 month old

My Collie mix dog, has a Multi-Drug Resistance Gene. (Mrd1*) She has always taken Droncit, 50 mg. (3 pills), for Tapeworms. I have a new Vet now, and he suggested giving her Droncit by Injection, if she reacts to the Dolpac 10 he wants to try her on, as he doesn't carry Droncit tablets. #1 = are Droncit injections Okay for my dog, as the tablets were? #2 = If she only has Tapeworms, should she be given Dolpac 10, for other types of worms, also? Or, just the Droncit Injection?

3 Answers

Most Helpful Answer

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Answered By Lauren Jones VMD

Veterinarian

Published on May 1st, 2017

None of these medications should cause problems related to Tasha's MDR1 gene. Personally, I prefer giving oral deworming medications rather than injections, but as I said, this is purely personal preference. Either Droncit or Dolpac 10 should be effective to treat tapeworms and it should not be an issue to administer the additional active ingredients in Dolpac 10. Many deworming medications contain more than one active ingredient and simply provide for a more broad spectrum of treatment. If Tasha would experience a reaction to the Dolpac 10 (which would be quite unusual), you could also ask your vet if he can prescribe Droncit tablets from either a local or online pharmacy if you are more comfortable with this course of treatment.

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Other Answers

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    Answered By Destini R. Holloway, DVM

    Veterinarian

    Published on

    MDR-1 sensitive dogs are sensitive to Ivermectin which is a heartworm preventative, and a few others at high dosage ranges. However Tasha is safe to take Droncit which contains Praziquantel and also Dolpac which contains all intestinal dewormers. These are not shown or cause adverse reactions innoets with MDR- sensitivity. Here is a website link for Washington State University (where they test for the mutation) that also publishes their list of problem drugs for MDR- sensitive pets. https://vcpl.vetmed.wsu.edu/problem-drugs I hope this helps!

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    Answered By Lauren Jones VMD

    Veterinarian

    Published on April 30th, 2017

    There are no known contraindications of treating Tasha's tapeworms with praziquantel/ pyrantel/ oxantel (Dolpac 10) despite her MDR1 gene. As always, confirm any medications with Tasha's vet prior to administration.

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