What are all of the necessary, essential, and optional preventative medications dogs need (e.g. heartworm pills)? By medication, I do not mean vaccinations that dogs need, but rather medications like pills.

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    healthy dogs does not any medication at all but you need to keep an eye on your dogs health and consult a vet if you think something might be wrong,you should take your dog to the vet once a year for a checkup.only give medication to your dog AFTER consulting with your vet. Jan 1, 2021 at 7:03
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    That seems to be a list question (not a good fit for SE) combined with a huge opinion-based part, which is also off topic?
    – Stephie
    Jan 1, 2021 at 14:29
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    @trondhansen, by "medication" I meant more like, preventative medications. I know that dogs need to take some kind of monthly pill to prevent heartworm, but I was wondering if their was any other preventative medications that are also essential and optional. Jan 1, 2021 at 18:16
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    this is a global site and what types of treatment a dog need will differ greatly depending on where you live.an example are vaccines,here in mainland norway we do not have rabies so this is not a part of our vaccines,but if you bring a dog to svalbard (a norwegian island in the middle of the atlantic)you need to vaccinate against rabies because the wildlife(arctic foxes)are carriers of rabies on the island. Jan 2, 2021 at 5:13
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    would it be possible to make a community wiki out of this? An answer for each country, with the needed (from some government institution required) treatment for a dog? Maybe added with treatment recommended by a breeders-society or something similar? Jan 2, 2021 at 11:58

2 Answers 2


I know this answer might be unpopular, but the one person who knows best what your dog needs is a vet. As we established in the comments, this is an international community, so the environments our dogs live in are so vastly different that there cannot be one answer that fits all.

Your local vet knows best what kind of ailments they treat regularily in the area and therefore which preventive medications are worth it. In many cases it's enough to call them and they give you a recommendation for free. They can also give you tips about first aid for dogs: what symptoms to watch out for (in case of poisonings, infections or pain) and what items to have in your first aid kit.

Please keep in mind that your vet should see your dog at least once a year anyways for a routine checkup and to refresh the vaccinations.


Germany here:

  • I live in a very rural way, my dog is best characterized as a farmyard dog who has access into the house. Even though the dog roams our grounds, we've had fox puppies in a wood pile and you may see some roe deer browsing while the dog snores in his hut maybe 25 m away. Which means that my dog has an unusually high exposure to wildlife parasites and diseases.

    Under these circumstances, I regularly deworm the dog and he gets a preventative spot-on repellent treatment against flea, ticks and mosquitoes. More frequently when there are lots of ticks around since the repellent property against ticks doesn't last as long and we do have lots of ticks, Lyme disease (where I ask myself why there isn't a spot-on also for humans, the antibiotic regime isn't that much fun and it also doesn't always work) and also tick-borne encephalitis (against which we humans vaccinated since back when that was available only based on actually high exposure to ticks), so they are the primary concern. He's also picked up flea, probably by saying hi to either the fox or a hedgehog (or a racoon or ...), but they left him within hours, so the repellent seems to work nicely.

    I'd say both treatments are optional in the sense that I wouldn't think any worse of a dog owner who deworms only when actually needed, and does not go for the repellent.

  • For a "downtown" dog who spends its life indoors and is walked only on streets and maybe in the park and at most occasionally has exposure to rural settings during a strictly leashed weekend hike, I'd probably deworm only before vaccination. I'd then consider preventative flea treatment very much a matter of personal preference. On the one hand, it would be unlikely to ever pick up flea, but on the other hand they'd be guaranteed to be released in the flat.

  • Heartworms are so far no concern over here, though they are known e.g. in the Mediterranean region.
  • Don't forget that whenever your dog has flea, you need both anti-flea treatment plus deworming since cat flea (the most common flea over here) can transmit the flea tapeworm.

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