Best Heart & Intestinal Wormers
Sentinel Spectrum Tasty Chews
NOT CHEW-Y – ****opinion based on palpability: not any side effects*** My pup has been on *regular* Sentinal TABS for Years. Recently I switched to CHEWS… Read more
(assuming) would be easier & quicker for dispensing. NOT!!! :-( They are little "bricks" which I dampen with water then cut up so my pup will even swallow!! (NO, they haven't expired)
Our 2nd pup was given a HeartGuard RX by our Vet >>>those ACTUALLY are CHEWY and crumble in my hand. ^^^So in 3 months I will stop Sentinal and switch to HEARTGUARD!!! :-)
Advocate for Dogs & Cats
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I recently used Advocate for Dogs 10–25 kg on my 14-month-old dog, following the instructions carefully. Unfortunately, I had a poor experience. The… Read more
product had an extremely strong chemical smell—so strong we could smell it from over a metre away, and it made it unpleasant to be near her. Given how sensitive dogs’ noses are, I can only assume it was very uncomfortable for her as well.
Within an hour, a large, wet, oily patch developed at the application site. After 6 hours, the smell hadn’t faded at all, so I ended up washing the area to remove it. Thankfully, her skin didn’t show any irritation.
I contacted both the seller and the manufacturer (Elanco). The seller redirected me, and I never received a response from the manufacturer.
I won’t be using this product again.
Aristopet Fleas, Heartworm and Worms Spot On
After having a bad experience with another brand of spot on wormer and flea treatment, I was nervous about using this, but thankfully, it's been a… Read more
much better experience! Our cat didn't have any adverse reactions and actually seemed to be more energetic afterwards. We've used it twice now, and apart from our cat not liking having it put on, she's been happy and healthy!
Easy to use and dogs love it – Love that it does all intestinal worms and only have to do it every 3 months and it does tapeworm Just put wormer in some cheese and my dog eats it all Show details
Fantastic All In One!!! – I stumbled on this by accident and thought I would try it on my dogs. Excellent product. Love that it’s all in one, not messy and not a single flea or ear mite in months. Definitely keep buying Show details
Heartgard 30 Plus
Don’t give your dog this – We took our molly a distemper surviver she was 13 yrs old . We took he for a wellness check at a weekend vet at a tractor supply . The vet suggested… Read more
we put her on a heart and wormer medication. She was around 26lbs the dose the vet gave her was 25 to 50 pounds . She was healthy all bloodwork good . We started the dose and she suddenly started have seizures . My daughter had a lab mix and was on the same meds . And told us about the same issue with her dog , So we stopped the seizures stoped but we started noticing she had begun to start coughing. And putting on weight for some reason . Within 2 weeks she was a big as a hot air balloon. Swelled up , turned out to be liver damage from this [Content Removed] medicine. The vet didn’t do the proper test to see if our dog could handle it and also it says certain breeds will get liver and kidney damage . Do not give your dog this medicine. Ivermectin it’s dangerous for our little fur babies if not prescribed right . Our little Molly gone because of this .
NexGard Spectra
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I brought Nexgard l thought my cat was going to die. He was lathrgic not eating and could hardly walk for 24 hours. However my other cat had no side effects. I never used it again. Show details
Zoetis Revolution for Dogs
My revolution is not working. It's still says it's good date but my entire freaking house is full of fleas! – This month when I applied Revolution! The fleas are out of control!!!! Jumping on me.... Biting...... Show details
Bravecto Chew for Dogs
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My dog has been on Bravecto Chews for 10 years. These chews are half the size of the ones I got from the vet. They work the same. I can't say for… Read more
sure but I believe that these don't have stuff in it that is not really needed. My vet is offering a once a year shot. I don't trust it. If it's not broke don't fix it. You just have to decide for yourself what is best for your pet. You are with it every day. The vet sees them once a year if they don't get sick. Who knows them best?
NexGard Chewables
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If you love your dog. NEVER give a chewable. You are poisoning your dog from the inside. It killed my precious baby. Show details
Great product. Does the job – Im suprised to see the negative reviews as Ive never had an issue with this product. For the dogs that dont like medication if you hide it small… Read more
enough or at the very worst have to grind it up it works fine. Product has always worked for my dogs past to present.
Profender for Cats
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do not use this product it is poison and any veterinarian that would use this product to treat animals should be arrested for cruelty to animals i… Read more
wish i could have known how bad this product is i trusted the vet i took my kitty too. i would think a licensed veterinarian would research the drugs there are injecting into there customers loved ones before doing so.. in twenty min of researching this product i learned i would not prescribe it to the veterinarian that killed my cat.. 12\29\2025 i took my kitty of 14 years in for ear mites and she treated her with profender topical solution on 12\30\2025 she was showing hard breathing and drooling. 1\1\2026 9 am i rushed her to the are veterinarian hospital but she past on the way a horrible death crying in pain and she could not breath i could not drive any faster as my best friend of 14 yrs died in my lap. how is this product allowed to be used
Huge tablets. Even halved ar quartered and using the tablet doser, these are almost impossible to give to a cat. May be a great product, I couldn't… Read more
tell as the battle to administer meant they didn't get fully dosed. The company needs to rethink the administration end of the product to be more user friendly. This ended up being a total waste of money.
Interceptor Spectrum Tasty Chews
My dog has been on this product faithfully. He has heartworms now. So I have to spend almost $1000 – This product isn't worth the money!! I won't ever spend $70 for this product!! I hate when they say a product works and it don't.My dog has been on this product faithfully. He has heartworms now. So I have to spend almost $1000
Simparica Trio Range
thank you vet supply! you have the best prices on the internet & I purchase all of my simparica trio from you!!!! thank you for serving American clients. I so appreciate you for helping me keep my big dogs healthy! Show details
Drontal Chewables
8 hours of mania!! – Gave recommended dosage to our 9 week old spaniel.Soon after he started with diarrhoea,we then had 8 solid hours of mania. Our normally placid puppy… Read more
could not rest taring around the house,jumping up, barking and biting until finally after 8 hours he went to sleep. Needless to say I will never give another Drontal product to any of my dogs.
Totalcare Tasty Allwormer
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WARNING DONT BUY I gave me 34kg Staffy 12 years old a dose of this poison on the 31st of January 2026 and within hours he went of his food and was… Read more
vomiting and eating grass all day ... Now on day 6 after taking this horrible medicine, He has blood shot eyes and swelling underneath his eyes and and is very listless ... I wished I had read these reviews first im so p*ssed off right now and frightened I will lose my dog ... Two visits to the vet and a anti nausea injection and a steroid injection and he is STILL as unwell as before . So overwhelmed atm that i will lose him ... This product needs to be removed
Hi Allison, We're sorry to hear about your experience.… Read more (+1 reply)
Drontal Allwormer for Dogs
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Oh my I just read all these reviews, I gave drontal to my puppy and could not understand why he wasn't eating since I gave it to him yesterday and… Read more
today he looked to be shaking at one stage I could see he was a bit off but at this stage no hottifying side effects, but I can say for certain that this is the last dose i will give him. I missed his 8 week dose, gave him dose at 10 weeks but was hard to get him to eat it this so not sure if he swallowed it all as he kept spitting it out. At 12 weeks which was yesterday he ate it all and now I can see he is not well, definitely do not use.
Exelpet Intestinal All-Wormer For Cats
Dangerous - AVOID – Gave this to our 1 year old cat and within an hour or so he has third eye lids permanently across his eyes, was wobbly and unsteady on his feet and… Read more
lethargic. Having read other reviews on here we will never be giving it to him again. Bad side effects that are not listed on the box. Had to take him to an emergency vet on a Sunday and public holiday. AVOID
Puppy vomiting – I gave this all wormer last night to my 8 month old puppy and he has vomited twice since and been off his food. I am guessing it’s the all wormer as there has been no other change to his daily schedule/food. Show details
Drontal Cat Allwormer
Side Effects Of Drontal For Cats – My cat is now falling over :-( and looking extremely unwell. Will be up all night keeping a check on her now.
Exelpet Intestinal All-Wormer For Dogs
Sadly I'm forced to give this deadly product even one star, or else I would give it a minus 5. Gave to both my dogs, both had facial and leg swelling… Read more
almost immediately. Both dogs had trouble eating and breathing. This is supposed to be a trusted brand, but I wouldn't spit on it. DO NOT GIVE THIS TO YOUR BELOVED PETS
Bravecto Plus for Cats
I lost my beautiful 18 year old cat Blacky after using this rotten medication we went to the vet to buy it and it was one of the biggest mistakes of… Read more
my life. My cat ended up not able to stand or lift her head was vomiting. After trying to save her for 2 days and $2,700 later she’s gone. Please do yourself a favour and stay away from this product Bravecto plus our girl would still be here today if we knew better.
Durvet Ivermectin Sheep Drench
Great option to rid your dog of parasites – I just ordered Ivermectin Sheep drench to use on my dog. I wish I had known of it before. It has made a significant improvement to his condition… Read more
over-night. He had his first monthly 5 ml dose at teatime. He is 21 kg or 46.3 lb. By the morning he was looking a fair bit better. After a few more months of treatment, I expect he will be clear of all parasites. I am getting some special pest treatment shampoo for him too. At around $80 for a year or more's supply, it makes all the other pest treatments at the pet stores or from vets seem really poor, in terms of being, in my opinion, relatively much more expensive and worse still ineffective, leaving me poorer and frustrated, and leaving the dog in the awful state of being pest-infested. I tried 5 or more leading brand name products for pests such as fleas, worms, and even the fancier products supposed to conquer flea dermatitus etc. The dearest of them even, seemed to give no relief at all.
In regard to the Ivermectin sheep drench here reviewed.
I was scared to use it, but I am glad I did. It is widely recognised as an option for ridding dogs of pests. I looked on the Internet to see.
The main points are, that it is safe to use and it works very well indeed. You can actually see it works by how the dog improves visibly, in a remarkably short time-frame.
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Definite waste of money. On both occasions were the tablet was provided, our cat vomited over 5 times within the hour, until there was nothing but… Read more
bile. I don’t know how the products sells despite the endless amount of poor reviews, and the company just saying it’s in accordance with some nonsense policy.
Hi Nahiyan, Thank you for reaching out to us. Sorry… Read more
Moxiclear For Cats Over 4kg
Moxiclear. No fleas – Great product. My vet said to me use this one for your fleas on your cat. She handed me Moxiclear for cats over 4kg. I have three cats and they have remained flea free for over a year. Show details
They survived – Hi , just thought i would get back to you and let you know my two border collies an 8 yr old and a 6 month old have had no ill signs , they are there… Read more
normal lively selves , thank heavens ! I think next round though, i will stick to the vets brands , for peace of mind and i couldn't bear to go through what some of the other unfortunate folk out there went through .
Drontal Worming Suspension for Puppies
I gave the Puppy Worming Suspension to my ten year old Maltese, because she is very sensitive and doesn't even weigh 4 kilos. Worked great. No side… Read more
effects whatsoever. I am so relieved, because I read so many bad reviews about the Drontal Allwormer Pills. It is a bit difficult to administer and if you spill some, it will stain, but other than that, all good.
Troy Puppy and Kitten Worm Syrup
Troy worming syrup doesn't treat all.types of worms in kittens and puppys – I bought troy wormer for.my kitten at vet it was cheap.so I bought a few bottles , ,Why bother making a kitten, puppy wormer that doesn't treat all worms...useless! no wonder it's cheap. Show details
Honestly, I am very disappointed with this product and would recommend AGAINST buying it as this has caused some serious health concerns with my… Read more
1yo, perfectly healthy, indoor cat!!
The product was applied and within 24hrs my cat reacted to the treatment. I noticed a very large chunk of fur missing from his tail. It's now been 2days and he is still losing fur around his tummy, groin and inside of his legs where he is constantly licking at the site causing more discomfort.
I have also noticed his urine to be very cloudy and when investigating the cause of this, it appears that its a possible UTI.
All of these symptoms are in line with another person who has posted here stating the exact same reactions as my cat to theirs after using this product.
I am so very upset I didn't read the reviews before applying the treatment as my cat was perfectly fine and healthy and I go to extreme lengths to ensure his health and safety at all times. Now I will need to find funds to take him to the vet as recommended by your 'customer service team' I spoke with on the 1800 number provided as well as, any treatment cost to get my cat healthy again.
The whole experience has been very unpleasant firstly with the product and again with the appalling service I received over the phone. I'm wondering how this company is able to get away with poisoning our pets yet taking no accountability leaving the emotional and financial stress up to the consumer???
10/10 DO NOT RECOMMEND THIS PRODUCT!
Hi Vanessa, We're sorry to hear about your experience. As… Read more
Heartworm
What is heartworm?
Heartworm refers to a parasitic worm that can infect your dog or cat. It’s transmitted via mosquito bite, if that mosquito has drunk the blood of another infected animal and then bites your pet.
Heartworm larvae hatch then live inside your dog or cat’s heart arteries. If the heartworm is left untreated, they will breed, then lay more eggs, leading to a worm infestation of several hundred worms.
A heartworm infection of this scale can cause congestive heart failure, which is potentially fatal. At this late stage, treating a dog in order to cure them from heartworm is very difficult - it’s not a promising prognosis for survival.
That’s why prevention is so important.
Heartworm tablets for dogs
Luckily, there are a variety of treatments available to prevent heartworm and ensure that your dog doesn’t have to suffer.
The medication kills off immature forms of heartworm larvae. Heartworm medication needs to be taken for the course of your dog or cat’s life for it to be effective.
Puppies can start taking heartworm medication when they reach 8 weeks of age.
Heartworm tablets for cats
While heartworm is much more common in dogs than it is in cats, cats have much smaller pulmonary heart arteries. This means they’re at higher risk of death if they do get infected and are left untreated.
With kittens, you can start giving them heartworm medication at 6-8 weeks old.
Does heartworm medicine kill intestinal worms?
This depends on the specific product. While some heartworm medicines also kill some intestinal worms, one product is highly unlikely to be adequate to protect from all parasites. You also can’t forget protection from fleas, ticks and mites.
Always check which parasites a product specifically protects your pet from.
For example Purina’s TotalCare Chocolate Worming Treatment for Dogs & Puppies protects against roundworm and hookworm, but doesn’t treat heartworm, whipworm and tapeworm in dogs.
An ‘all-wormer’ is more likely to be an all-rounder product, but it still may exclude some types of protection. Tapeworm treatment may be left off the list, as it’s treated with a different chemical to most worms, which is called praziquantel.
Intestinal worms
There are a wide host of intestinal worms that your dog or cat may be infected by.
This includes roundworms, hookworms, whipworms, tapeworms, and common flea tapeworm.
Common types of worms
- Hookworms can cause potentially fatal anemia, especially in young puppies, with treatment resorting to hospitalisation, and/or blood transfusions. These short blood suckers have hook-like teeth and feed on blood vessels in the intestine, moving to the lungs then back, spreading infection.
- Whipworms feed off blood vessels in the large intestine of dogs, causing inflammation and bloody diarrhoea in dogs.
- Roundworms are long worms that feed off partly digested food, and can stunt the growth of puppies. When eggs hatch, the larvae can move into other organs and body tissues, and potentially cause blindness.
- Tapeworms are long and flat. They live in the small intestine, feeding off nutrients there and taking away nutrients from your pet. They can cause an itchy bottom in cats and dogs, which can lead to 'scooting' - pets dragging their bottoms across the floor. It can also cause vomitting and weight loss in both dogs and cats.
How do I know if my dog has intestinal worms?
There are plenty of potential symptoms your dog can present. These include but aren’t limited to: anemia, weight loss, blood in stools, and/or diarrhoea. A swollen belly can present itself, and look like a pot belly. Some worms are excreted in faeces as well.
How do you get rid of intestinal worms in dogs and cats?
The best way is to prevent the infection in the first place, by using intestinal worm tablets. Here is an example of a vet-recommended treatment regime for best protection, for both cats and dogs.
- Up to 12 weeks old: Treatment every 2 weeks
- 3 months to 6 months old: Monthly prevention treatment
- 6 months and older: Treatment should be a minimum of once every 3 months for both dogs and cats.
- Dogs who live in the country or frequently visit rural areas: should be treated every 6-8 weeks. They should also avoid contact with animal carcasses as much as possible and avoid feeding your dog offal (raw animal organs), as this can greatly increase their risk of hosting intestinal worms.
Dosage
This will depend on the particular products you opt for, so always remember to check the dosage directions carefully. If you have multiple products that require administering dosages at different frequencies, creating a schedule or typingthe dates into a Calendar app may help.
For example, many heartworm products require a monthly dosage, whereas intestinal wormers frequently work by being taken once every three months.
Often the dosage is decided per kilogram of bodyweight, for example 1 square of a chew tablet to be eaten per 10kg of bodyweight, but again, this depends on the specific product.
Types of Medications
Tablets
These will usually have to be crushed up and put into your dog or cat’s food. However, if you have a wily pet they may be able to sniff out the tablet and push it aside, or spit it out at the end of their meal.
It’s important to always check that your pet has consumed the medication after you’ve tried to feed it to them.
Cats in particular may be resistant to tablets, and there are medicines that you can spray straight into their mouth (though they might not especially like that, at least they’ll be healthy!)
Chews
These are made to look like food, and often have a meaty flavour and texture to be more palatable to pets. For example, the popular Heartgard 30 Plus, is a chewy medicine with a beef flavour, and treats heartworm, hookworm and roundworm.
Spot-on treatments
Spot-on treatments are medicines that you apply topically to your cat or dog’s fur.
Just keep in mind that this treatment requires that pets don’t come into contact with water, as otherwise the medicine will likely be rubbed off and rendered ineffective.
Additionally, as your pet goes about his or her day, their fur makes contact with human hands and furniture. Toxic chemicals can rub off, which can be risky if you have young children around who unwittingly ingest the medicine.
How much do heartworm and intestinal worming products cost?
Treatment at home
Tablets or tasty chews typically cost between $130-$200 for a yearly supply, taking into account products that treat heartworm, the major intestinal worms and sometimes also fleas, ticks and mites.
Vet treatment
If you prefer to get a yearly heartworm injection at the vet’s, this slow-release medication lasts for a year.
It can cost $60 for very small dogs, to $250 for large dog breeds per year. You may also need to pay a consultation fee, and this doesn’t include the cost of extra medication for fleas, ticks and intestinal worms.
While this works out to be more costly than treatment at home, you don’t have to worry about your pet becoming sick if you forget to give them their heartworm tablet one day.
Conclusion
Both heartworms and intestinal worms can cause your pet to fall ill. Infection causes a number of unpleasant symptoms for your dog or cat, and can even result in death. Preventative treatment is a simple and cost-effective solution to help safeguard against this.
There are a variety of tablets, chews and liquid treatments you can give your pet from the comfort of home. In the case of heartworm prevention, a vet can give your pet a yearly heartworm injection. Also don't forget about flea, tick and mite medicine, and any other treatments your pet may specifically need to keep them healthy.
Thank you for letting us know of your experience, which… Read more