Only Natural Pet HW Protect Herbal Heartworm Prevention Dog & Cat Supplement, 4-oz bottle

  • Was:


  • Price:

    $17.99 FREE 1-3 dayShipping over $49

  • You Save:

    $16.41 (48%)

Autoship: &Save

$17.09(Save an extra 5%)

Simply select Autoship at checkout for easy regular deliveries.

In stock
cw-icon-heart Created with Sketch. Add to Favorites

Help keep pesky mosquitoes off your pal with the all-natural, plant-based Only Natural Pet HW Protect Herbal Formula. The veterinarian-formulated blend contains pure herbal extracts known to work inside your pal to make him less susceptible to mosquito bites, including ginger, black walnut, wormwood, oat, parsley and andrographis—a plant form Sri Lanka known for its medicinal properties. The formula comes with a handy dropper, but don’t go putting it on your pal—it’s gotta go down the hatch! Simply give it on its own, or mix it with food or water. It’s a great alternative to chemical-based formulas, and as a complementary part of any heartworm prevention program.

Key Benefits
  • Veterinarian-formulated herbal blend works internally to make your pal less attractive to mosquitoes.
  • Works for cats and dogs alike, and is easy to use by just feeding it on its own or mixed with food.
  • Contains medicinal herbs that are safe to ingest like ginger, black walnut, wormwood, oat, parsley and a Sri Lankan herb called andrographis.
  • Great as part of a comprehensive heartworm prevention program, as heartworm is transmitted by infected mosquitoes.
  • Made in the USA in an FDA-approved facility using human-grade ingredients and no artificial colors or preservatives.

For animal use only. Do not use if product appears tampered with. Keep out of the reach out children and animals. In case of accidental overdose, contact a health professional immediately. This formula is not for use in pregnant or nursing mothers, animals with kidney or liver disease, or those with seizure disorders.

Consistent dosing is essential for proper protection along with heartworm testing at least every 6 months.

See all items by Only Natural Pet

  • Item Number
  • Lifestage
    Adult, Senior, Puppy
  • Breed Size
    Small Breeds, Medium Breeds, Large Breeds, All Breeds
  • Food Form
  • Product Form
Nutritional Info

Active Ingredients: Ginger (root), Black Walnut (green hull), Wormwood (aerial parts), Andrographis (aerial parts), Oat (seed), Parsley (root).

Inactive Ingredients: Purified Water, Glycerin, Agave Nectar.

Feeding Instructions

For Dogs and Cats: 3 times per day, give 1 drop for every 2 pounds of body weight up to 50 pounds, plus 1 drop for every 4 pounds of body weight over 50 pounds.

Each 2-oz bottle contains approximately 1,050 drops, and each 4-oz bottle contains approximately 2,100 drops of the formula.

For example, a 70-lb dog would be given 25 drops + 5 drops = 30 drops, three times each day (total 90 drops).

Refrigerate after opening. Shake well.


Why should I include vitamins & supplements in my pet’s diet?

Most commercial pet foods include baseline vitamins and nutrients, but some may not have the adequate amount to suit your pet’s exact health needs. Like in humans, vitamins and supplements can help support your pet’s long-term health, regulating everything from digestion to muscle growth. Consult your veterinarian to determine the best vitamins and supplements for your furry friend.

How often should I give this supplement to my pet?

It is recommended to give the suggested dosage based off your pet’s weight. Please refer to the Feeding Instructions tab and consult with your veterinarian for more information.

Is this supplement safe to use with the medication my pet is currently taking?

If your pet has a medical condition and is taking other medication, we recommend consulting with your veterinarian to ensure that this supplement is safe to use.

My pet is allergic to certain ingredients, will this product be safe to use?

For a complete list of ingredients, click on the 'Nutritional Info' tab, next to the 'Description' tab, just under the product photos. If you are unsure about the safety of this product for your pet, we recommend consulting with your veterinarian.

Does this product come in other product forms?

For a complete assortment of products by the manufacturer of this supplement, click on the link next to the item name at the top of the page. You can also find an assortment of supplements across all product forms on our page.

Rating: 3.0 of 5 stars 10 Reviews 10 Reviews 3 out of 5 Stars

Filter reviews by star rating

50% Recommend

50% of reviewersrecommend this product

Rating: 3.0 of 5 stars 3 / 5

You've Already Reviewed This Item

10 Reviews

Showing 10 Reviews

  • 1 out of 5 stars


    By on

    Both my girls got sick when I started using this so I had to stop using it. They used it less than One week

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Dogs don't mind the taste

    By on

    I can't give a review if it works for my dogs as we haven't had it that long, but I put it on my dogs treats and they still eat the treats. They are very finicky shih-tzus so this is a taste that they don't mind at all. My sister uses it for her dogs and says it also keeps fleas away (due to the walnut ingredient).

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    So far it works great!

    By on

    I've only used this for two months. My dog has a history with heart-worms so I wanted to be safe but didn't want to load him down with poison. The mosquito's are currently not bad here, but the mosquito's that are around, attack us and seem to leave our dog alone. I only give it twice a day and it seems to work :)

    You liked it! Something went wrong. Please try again later. Report
  • 1 out of 5 stars

    not happy at all

    By on

    Did not receive the right product wish I could get my money back

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Amazing & Perfect

    By on

    My dog and cats have been receiving this remedy for five years and still are safe from heart-worm without using harsh unsafe chemicals and poisons. I simply add drops to their breakfast and mix it in with all the foods and supplements. Everyone always eats their meals. I always administered this product once time per day and the product to has proven successful for all four KidZ.

    You liked it! Something went wrong. Please try again later. Report
  • 5 out of 5 stars

    Only using this for last 5 years

    By on

    I have been using this for over 5 years on all my babies. The chemical stuff causes seizures in my girl and hurt my boy's liver. I will never use the chemical poisons again. My vet wasn't sure but has become a believer. Yes it is multiple doses a day but my little ones are worth the effort to feed them 3 times a day with this in it. Plus feeding 3 times is better for their blood sugar levels and kidneys. I also make them homemade organic food so I can put anything medicine in it and they will lick the bowl clean. My suggestion to anyone having problems is to add a bit of tuna juice or wet food to get them to take it.

    You liked it! Something went wrong. Please try again later. Report
  • 1 out of 5 stars


    By on


    You liked it! Something went wrong. Please try again later. Report
  • 2 out of 5 stars

    Not sure about product

    By on

    Much rather use monthly chewable. daily drops don't work because she doesnt eat all the food on a daily basis and giving her the drops 3xs a day is difficult.

    You liked it! Something went wrong. Please try again later. Report
  • 4 out of 5 stars

    So far, so good

    By on Top 1000 Contributor

    The dogs don’t seem to notice the drop or mind it being in their food. It woks was he same way other heart worm meds do, so I’m pleased that it is natural. Be sure to read and follow the directions!

    You liked it! Something went wrong. Please try again later. Report
  • 1 out of 5 stars

    Too many doses

    By on

    You have to give it to your pet 3x a day. I cant remember to take my own vitamins 3x a day.

    You liked it! Something went wrong. Please try again later. Report