HEARTGARD Reviews

HEARTGARD has an overall rating of 4.2 based on 80 reviews. Customer feedback on HEARTGARD is mixed: HEARTGARD reviewers highlight positive aspects like effective heartworm prevention, easy to administer, positive customer service experiences, affordable pricing, which strongly appeal to pet owners seeking heartworm prevention solutions. However, HEARTGARD is often criticized for its shipping delays, occasional product availability issues, limited information on certain products, higher prices compared to competitors.

4.2/5.0

80 reviews

5 Stars

17

4 Stars

6

3 Stars

0

2 Stars

4

1 Star

1

All HEARTGARD Reviews (80)
cyrus_Finch00
May 30, 2026
"Good support after a small hiccup"
I had a question about my order and they got back to me the same day, which I appreciated. The first response was a little brief and didn’t fully answer what I was asking, but once I followed up, they cleared it up. Stuff like that happens, so as long as it gets fixed, I’m happy. Overall, good experience.
jennie.Hilliard
May 29, 2026
"I used the coupon and, at least in..."
I used the coupon and, at least in my case, it went through fine. I don’t have much to compare it to, but the rebate did show up without any real hassle, so I’m happy with it
COX
May 11, 2026
"I’ve been using heartgard for years and it’s..."
I’ve been using heartgard for years and it’s always worked well for us. No issues at all, and it’s easy enough to give to my dog. I trust it and keep coming back to it for my pup.
edwin1970
May 02, 2026
"Arrived neatly and the info was easy to follow"
The Heartgard box showed up in good condition, not crushed or beat up, which I appreciate. When it comes to pet medicine, I think companies and sellers have a responsibility to make sure it arrives properly, so that was a good sign right away.
The packaging was straightforward too. The dog weight range and the number of chews were easy to spot, so I didn’t have to stand there turning the box around trying to figure out the basics. That kind of clear labeling feels like the right thing to do, especially for something people are giving to their pets.

My only complaint is that some of the small print is really tiny, and I wish they’d make that easier to read. Still, overall it was packaged well, simple to understand, and I’d give it 4 stars
Vivian.ly
May 02, 2026
"worked better for my dog than others"
i tried a couple cheaper preventives before, but my dog really didn’t like taking them. heartgard has been way easier since he eats it like it’s a treat, and he hasn’t had any upset stomach issues so far. reordering was simple too, which was nice.
Royce-desimone
April 24, 2026
"Vet recommended, easy yes"
My vet said she uses Heartgard for a lot of dogs, so that pretty much sold me. My dog takes it with no drama, and I like knowing it’s something my vet actually trusts. Ordering on heartgard.com was quick, too. No issues here...
DanielleJacobson
April 15, 2026
"Vet approval was super easy"
Ordering was really simple. I just added my dog’s info and my vet’s details, and they took care of getting the prescription approved. It only took about a day or so, and there wasn’t any annoying back and forth. it was nice not having to call the clinic myself.
Sara-allen
April 14, 2026
"I’m not the best at keeping up with..."
I’m not the best at keeping up with my dog’s meds, so the reminders from heartgard.com have helped a lot. It’s nothing fancy or complicated, just simple and easy to follow. Since I started using it, my dog hasnt missed a dose, which is a big win for me.
hello_ethel029
April 10, 2026
"Pretty quick delivery"
Shipping was quick and reliable, and the whole experience felt really smooth from start to finish.
WHITTMAN
April 01, 2026
"Easy to choose the right dose for my dog"
I really appreciated how HEARTGARD breaks the dosage options down by pet weight. I remember standing in a store once, turning boxes over and over, worried I was picking the wrong size for my dog, so seeing the weight ranges clearly listed online was a relief.
Ordering was simple too, without a bunch of extra clicking or confusing steps. It was nice to just find my dog’s weight range, choose the right box, and feel confident I wasn’t second-guessing myself the whole time
michaelwenzel8311
March 29, 2026
"Still happy with it after all these years"
We’ve been using heartgard for years now, i just feel better not worrying so much once mosquito season rolls around. The site is easy to use, and the reminders are actually helpful because otherwise I’d probably forget. My only small complaint is that checkout can be kind of slow on my phone sometimes, which is annoying when you’re just trying to get it done. But overall... it gives me peace of mind, and my dog takes it without any drama, so...
kelly-Lowman
March 23, 2026
"I’ve been using it for my dog and..."
I’ve been using it for my dog and he’s been doing fine, so... yeah, I feel okay trusting it for him
josephmedeiros8184
March 14, 2026
"Quick and actually in stock"
I was glad Heartgard was actually in stock when I checked, because I really didn’t feel like wasting time hunting around. Ordering on the site was simple and I didn’t have to click through a bunch of extra stuff, which I appreciated.
AliceWilliamson
March 07, 2026
"Thought I Was Going to Be Stuck, but They Fixed It"
I had an issue with my refund and thought I was going to be the one left dealing with the hassle, like usual. But they actually handled it better than I expected and sent out a replacement quickly. Support replied without making me jump through a bunch of hoops, which was a relief. I’m glad it got sorted out.
mabel2001
March 04, 2026
"Perfect for my little dog"
This was really easy to give to my tiny pup, which was a relief because she can be picky about pretty much everything, even treats sometimes. I gave it to her after breakfast while I was cleaning up the kitchen, and there was no fuss at all. Nice and simple for a small dog.
hello_yvonne826
March 03, 2026
"I’ve been giving heartgard to my beagle for..."
I’ve been giving heartgard to my beagle for almost a year and was consistent with it, always on the same day each month. At his last vet visit, though, his test results came back a little off and we had to do some extra follow-up, which made me really nervous.
I’m not saying it doesn’t work, and maybe it’s been totally fine for other dogs, but it definitely shook my confidence a bit. For what it costs, I was hoping I’d feel more reassured than I do right now.
RichardMicks_13
February 21, 2026
"I’ve known about Heartgard for a long time..."
I’ve known about Heartgard for a long time, so I felt okay using the site. It was generally easy enough to find what I was looking for, and the info seemed legit from what I could tell. The website isn’t exactly super fancy or anything, but I trust the brand and didn’t really have any issues.
JonJenkins_14
February 11, 2026
"My beagle gets HEARTGARD once a month. So..."
My beagle gets HEARTGARD once a month. So far, totally fine. No stomach issues, no acting weird, nothing like that. I still keep an eye on him after I give it to him, just to be safe. But it’s been easy.
joseph_Cox80
February 03, 2026
"Helped when my dog had a reaction"
My dog suddenly got super itchy after what seemed like a reaction, and the scratching was ridiculous. I reached out and got help way faster than I expected, which was such a relief.
hello_antoinette221
January 31, 2026
"Easy, but don’t forget the monthly step"
It’s easy to deal with once a month, but just a heads up to anyone thinking about it: make sure you actually remember it. I set a reminder because otherwise it’s the kind of thing that can slip your mind.

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