Benadryl is an effective human medication for dogs with a seasonal or allergic reaction to fleas, mold, pollen, dust mites, and ticks. However, the dosage differs depending on the size and breed of your dog. If you have several dogs, or your dog is a bit older, the vet may not be able to give you a precise dosage.


how much benadryl can I give my dog


What is Benadryl.

Benadryl is, also known as its active ingredient diphenhydramine, is an antihistamine that relieves allergies in dogs and humans with symptoms.

Vets typically recommend Benadryl for dogs suffering from mild or moderate allergy symptoms. Benadryl is a drug with various applications for your pet’s health. This article, we’ll explain the best way to provide your dog with Benadryl in the correct dosage based on the body’s weight, as well as its possible side consequences. We also offer suggestions for alternative options to Benadryl that are natural.


Can I Give My Dog Benadryl?

Yes, as a pet parent, you can give your dog Benadryl with confidence. Veterinarians recommend Benadryl for dogs due to a variety of reasons. Antihistamines, like Benadryl, can aid in easing motion sickness, inflammation, allergic reactions to insects, and seasonal allergy.

Benadryl tablets block H1 receptors, which help reduce the number of histamines in the body and reduce allergy symptoms. Pet owners should know that the medicine can be well tolerated and has a wide safety margin for the use of dogs.

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Benadryl usage for fogs.

Veterinarians advise liquid Benadryl and diphenhydramine, its generic name to dogs with various signs. This includes environmental allergies, food allergies, anxiety, hives, motion sickness, and many more.

Because Benadryl may cause the feeling of drowsiness, it’s employed for dogs suffering from moderate to mild anxiety. Many dog owners give their dogs Benadryl in stressful situations like fireworks or thunderstorms. Veterinarians suggest its use along with treatment for anxiety and heartworms because it can prevent allergic reactions associated with it.


how much benadryl can I give my dog


Benadryl side effects for dogs are:

  1. Dry mouth
  2. Heart rate increases
  3. Hypersalivation
  4. fast breathing

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Benadryl Dosage for Dogs. 

Diphenhydramine tablets sold at drug stores regardless of Benadryl brand name weigh 25 milligrams. Like any other drug, the proper dosage of Benadryl in dogs is determined by the dog’s weight.

The usual dosage for dogs is 1 milligram for every pound of body weight. So, one tablet is ideal for a dog weighing 25 pounds. Veterinarians recommend an 8-12 hour dose (about 2-3 times every day).

Benadryl dosage for small dogs weighing less than 25 pounds can be treated with the liquid formula for children made up of Benadryl. Liquid formula for children is more convenient to determine the right dosage for small dogs than tablets. Use the formula for children of Benadryl in liquid form since the adult version has alcohol, which can lead the dog to Benadryl poisoning.

What types of dogs don’t need a large dose of Benadryl?

Some small breeds of dogs don’t need much Benadryl at all. These dogs include white German shepherds, giant Schnauzers, and large breeds of English bulldogs. These dogs can tolerate small doses of the medication without any side effects. In fact, they are the only ones that can survive without any negative side effects from this type of treatment.

Dogs with seasonal allergies are another group that can handle very small doses of the medication. The most common allergies among these dogs include flea, cat, and food allergies. This also depends on how often your dog gets outdoors and whether he has seasonal allergies. Your vet can give you the dosage for these dogs, and if you don’t want to administer it yourself, there are other options for you.




Dog Allergies.

Your dog’s allergies could indeed result from what they’re feeding them. The animal-based ingredients found in dog food ( beef, dairy lamb, chicken egg pork, fish and even rabbit) cause more than three times the number of food allergy cases than plants-based ingredients. According to a study published on, after five weeks of their patients “starting an elimination diet, more than 80% of patients had achieved a remission of clinical signs of CAFR [Cutaneous Adverse Food Reactions].”

So, your dog’s allergies may be eliminated simply by changing the food they consume. Before you give your pet any Benadryl, think about changing dog diet. There are a lot of testimonials from customers who’s dogs are no longer suffering from the constant itching, licking digestive issues, or inflammation after making the switch onto Wild Earth dog food. Take a look on the following video!


Difference impacts on dogs and people.

Although Benadryl may effectively prevent gesture illness in dogs, and mild sedative effects in humans, the results are not the same as for humans. Benadryl can cause hyperactivity in dogs and cats, which is adverse to what Benadryl causes. Dog owners have to make sure what’s dog reaction is to Benadryl.

One solution is to give your dog a small shot of diphenhydramine instead of giving him the entire pill. You do have to make sure that he doesn’t already have a severe allergy to this medication before you do this. You also have to make sure that you know how much diphenhydramine to give your dog because some dogs might not be able to tolerate even a small dose. If the dose is too much, the dog could develop a high fever or die. If your dog has a severe allergy to this medication, talk to your vet about other options for treating his allergies.




Some products use natural alternatives to Benadryl instead of the pharmaceutical version. These products are designed for dogs with allergic reactions to the ingredient used in the specific brand. These natural alternatives are usually less effective, but they offer better overall safety for your dog. The alternative that is the safest is to use an antihistamine. Your vet can recommend a good antihistamine for your dog. Since dogs have different lines of defense against allergies, some dogs will react more to one type of antihistamine than another.


Provide your medication from reliable sources.

You have to remember that over-the-counter medications are regulated by the US Food and Drug Administration and can contain ingredients that may not be good for your pet. It is important only to purchase these medications from a reliable source. Your vet should be able to guide you to the best product. Benadryl and other common canine antihistamines are available at many pet stores and through online retailers.

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If your dog has a severe allergic reaction to Benadryl, talk to your vet about prescribing stronger doses of the drug or switching your dog to another brand. Dogs can have side effects when taking too large a dose. You don’t want to hurt your pet through mistake. Talk to your vet about how much Benadryl I can give my dog and what to do if your dog has an adverse reaction to this medication.


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