Can Dogs Take Claritin For Allergies?

Can Dogs Take Claritin For Allergies?
Can Dogs Take Claritin For Allergies?

It can be nerve-racking to watch your faithful companion suffer from endless allergic reactions. You’ll be running up and down the stairs, trying to find a long-term solution to their pain. Claritin can be given to dogs in such cases, but only under veterinary supervision. It is critical to understand the uses, dosage, and side effects of any drug before administering it to your pet. This is because some medications can cause more harm than good to the dog. This article will help you understand Claritin, how it works, what it is used for, how much it costs, and what side effects it may have on dogs. It also provides an answer to the question, “Can dogs take Claritin or Zyrtec for itching allergies daily?”

What is Claritin for Dogs?

Claritin (loratadine) is an antihistamine that inhibits the effects of histamine in both dogs and humans. But what exactly is histamine? Histamine is a naturally occurring substance produced by mast cells that aid in the elimination of allergy triggers in the body via sneezing, itchiness, and tearing up.

How Claritin Work for Dogs Allergies

Antihistamines like Claritin are used to treat allergy symptoms in dogs, like itching and swelling. Loratadine, the active ingredient in Claritin, works by inhibiting histamine production in dogs. This way, your dog will not experience allergic reactions.

When something foreign gets into a dog’s body, the dog’s immune system first sees it as an allergen. It will then activate mast cells that contain histamine. Histamine is released from mast cells after they are activated.
This inflammatory biochemical circulates throughout the dog’s body, binding to H1 cellular receptors. As a result, allergic symptoms like redness, swelling, and itchiness occur.

Antihistamines such as Claritin are prescribed by veterinarians to alleviate these symptoms. Loratadine binds to the H1 cell receptors, preventing histamine from binding to them. This breaks the natural cycle of allergies and makes you feel better.

In addition to Claritin, antihistamines such as cetirizine and diphenhydramine can be given to your dog. Claritin is recommended by veterinarians because it does not cause drowsiness and lasts longer than other antihistamines.

Can Dogs Take Claritin?

The quick answer is yes. Claritin can be given to your dogs to treat allergies. Before giving your dog any medication, consult with your veterinarian. If your pet is already on other medications, make sure they don’t interfere and cause a negative reaction. It should be noted that, unlike Benadryl, Claritin does not cause drowsiness.

Can Dogs Take Claritin for Allergies?

Claritin can be given to dogs who have allergic reactions. Claritin is an antihistamine that prevents allergic reactions caused by—you guessed it—allergies. Histamines! Histamines are chemicals that our bodies and the bodies of our dogs make on their own.

These chemicals assist the body in getting rid of something that may be bothering your dog. It would be an allergen or trigger in this case. These are unique to the dog or person. Histamines initiate the removal of allergens from your dog’s body or skin. As a result, the sneezing and scratching continued. They are an important part of their body’s defense system.

The immune systems of dogs are very similar to ours. The immune system first detects “mast cells” in the skin, lungs, nose, mouth, gut, and blood. The message is to release histamines found in these cells. Histamines increase blood flow in the area of the body where the allergen is located when they exit the mast cells. This causes inflammation and allows other chemicals to intervene to repair the damage.


The Claritin dosage for dogs is determined by your pet’s weight. A consultation with a veterinarian is the best way to determine how much of this antihistamine to give to your pet.

Veterinarians usually give dogs 0.2 milligrams of Claritin for every pound of body weight. This translates to about 5 milligrams per day for a small dog and 10 milligrams for a larger dog.

Can Dogs Take Claritin for Itching?

Yes, dogs can take Claritin to relieve itching caused by allergies. Claritin is used to treat symptoms in humans such as runny noses and hives, but it is primarily used to treat itchy skin in dogs. It is not, however, suitable for use in an emergency, such as during a life-threatening allergic reaction.

Claritin can also be used to treat a variety of other health issues, including:

  • Mast cell tumor-associated inflammation
  • incontinence of the bladder
  • The symptoms of snake bites and insect stings
  • Vaccine reactions
  • Reactions to blood transfusions

Can Dogs Take Claritin Or Zyrtec?

Yes, dogs can take Claritin or Zyrtec for allergies, and these medications are effective antihistamines for puppies. Vets recommend 0.5 mg per pound of body weight, taken once or twice daily.

Which is better for dogs, Zyrtec or Claritin? It depends on the individual, just like it does with humans. You can talk to your vet about trying both separately to see which works best for your pup.

If your dog has allergies, give them Zyrtec or Claritin to help manage their symptoms. Many dogs with allergies will need a long-term plan to keep them from itching, which may include medications, supplements, and frequent baths.

Can I Give My Dog Claritin Everyday

Dogs can take Zyrtec (cetirizine) or Claritin (loratadine) once or twice daily. Both adult tablets are 10 mg. Dogs weighing less than 10 pounds should receive no more than 5 mg or 12 mg per tablet. Heavy dogs (those weighing more than 50 pounds) should take up to 20 mg.

How Long Does Claritin Take to Work on Dogs?

It can be administered with or without food. If your pet becomes ill or vomits after receiving the medication, try giving it some food. This medication will take effect quickly—within 1 to 2 hours—and your pet’s symptoms should improve.

Claritin Dosage Recommendation For Dogs

The dosage instructions you are about to read are general for all dogs and should never be used in place of professional veterinarian advice. Before giving your dog over-the-counter medications like Claritin, always seek individual pet advice from your veterinarian.

Claritin can treat allergy symptoms in dogs, but only when the correct dosage is used.

The right dose of Benadryl for your dog is also based on how bad the allergy symptoms are and how much your dog weighs. The recommended dosage is 0.2 milligrams of Claritin per pound of body weight for your dog. However, you must administer this medication in accordance with the veterinarian’s recommendations.

Here is a more detailed explanation of Claritin’s dosage for dogs.

  • Give 2.5 milligrams of Claritin twice daily to a small dog weighing 1-14 pounds.
  • Mid-sized dogs with a body weight of 15-40 pounds should take a 5-milligram tablet twice a day.
  • Finally, those weighing more than 40 pounds should take 10 milligrams of Claritin twice a day.

Take care not to overdose your dog on Claritin. Overdosing can have negative consequences. In the worst-case scenario, it can progress to more serious conditions such as stroke. Remember to give your dog the correct Claritin. Pseudoephedrine, which is lethal to dogs, may be present in medications such as Claritin-D.

Claritin Adverse Reactions and Contraindications

Every medication has the potential to cause an adverse reaction in humans and dogs. Claritin is no different. It does not cause drowsiness like other antihistamines, but it does have other side effects when dogs take too much Claritin for allergies:

  • Throwing up
  • Retention of urine
  • Laziness
  • Dryness of the eyes and mouth
  • Diarrhea 

If your dog experiences any side effects after taking Claritin, consult with your veterinarian about other options.

What Are Some Natural Claritin Alternatives?

There may be a few natural alternatives to treating your dog’s allergies, especially if they are mild! Most of the time, our pets are smaller than us, and the thought of administering any medication to them can be frightening and upsetting. Fortunately, there are a few natural, holistic approaches to treating allergies for pet owners. Take careful notes!

  • Diet: We are not strangers to the use of food as medicine. You are, after all, what you eat! A proper diet is one of the simplest and most effective things you can do to help your dog’s allergies. Eastern Food Therapy (EFT) entails observing what you see happening externally as a manifestation of your pets’ imbalances. You can support your dog’s overall health and well-being with a customized diet by diagnosing imbalances.
  • Apple cider vinegar: Apple cider vinegar is another natural alternative to Claritin. I’m sure you’ve heard about the numerous advantages that this kitchen staple can provide for you! What will it do for your dog’s allergies? Apple cider vinegar, on the other hand, is mildly acidic and contains antibacterial properties that are beneficial to your dog’s skin. Apple cider vinegar can be taken as a supplement or applied topically to your dog’s skin.
  • Epsom salt: If your dog is constantly licking its paws, it could be a sign of allergies. A cool water and Epsom salt foot soak is an excellent home remedy for your dog’s allergies. This treatment can alleviate inflammation caused by seasonal allergies, particularly after playing outside.

Can you use human Claritin on dogs?

Do not give Claritin-D to your dog because it contains pseudoephedrine, which is highly toxic to dogs when used to treat allergies. Antihistamines such as diphenhydramine (Benadryl®), cetirizine (Zyrtec®), and loratadine (Claritin®) are commonly used to relieve allergy symptoms or counteract allergic reactions. Antihistamines are generally safe, but they can cause drowsiness in some dogs and hyperactivity in others.

How much Claritin do I give my dog?

Claritin Dosage for Dogs

Veterinarians usually give dogs 0.2 milligrams of Claritin for every pound of body weight. This translates to giving a small dog 5 milligrams of Claritin daily, or 10 milligrams to a larger dog.

Which Claritin is safe for dogs?

Loratadine (Claritin): 14 mg per pound, once daily (half of a 10 mg tablet per 20 lbs). twice daily for dogs weighing more than 60 pounds: 50 mg of combined EPA and DHA per pound daily. Because of its high potency and purity, “Welactin” is recommended.

Is Benadryl or Claritin better for dogs?

Just keep in mind that Benadryl has sedative properties, so your dog may become drowsy. Claritin (loratadine) and Zyrtec are two other safe antihistamines for dogs (cetirizine). They produce less sedation than Benadryl but may still cause drowsiness in your dog.

Will 1 Claritin hurt a dog?

Antihistamine poisoning in dogs and cats can cause severe agitation, lethargy, sedation, aggression, an abnormal heart rate, abnormal blood pressure, vomiting, diarrhea, inappetence, seizures, respiratory depression, and even death.

Is 10mg Claritin safe for dogs?

Most healthy adult dogs can handle antihistamines with diphenhydramine, chlorpheniramine, cetirizine, clemastine, or loratadine as their active ingredients.


Dog Claritin is the same as human Claritin! You can use the same tablets that you use to treat your dog’s allergies. Although Claritin is safe for dogs, it is always a good idea to check with your veterinarian before beginning any medication. A vet can also advise you on dosing and how frequently your dog should take it.

It is just as aggravating for a dog to have allergies as it is for you. It’s unsettling and, to be honest, irritating. Also, their symptoms can include everything from itchy eyes to a runny nose to itchy skin to sneezing. While it is generally safe for your dogs to take Claritin for allergies under the supervision and instruction of your veterinarian, you should be aware that Claritin-D cannot be given to pets.

Frequently Asked Questions

What's the best antihistamine for dogs?

Benadryl is an excellent allergy medication for dogs with mild-to-moderate allergies. Benadryl works well for seasonal allergies, food allergies, environmental allergies, and allergic reactions to snake and insect bites.

What can I give my dog for allergies at home?

Supplements are an excellent way to boost your dog’s immune system. Bromelain, nettle, and quercetin are important allergies to look for in an allergy supplement. Each of these ingredients contains anti-inflammatory properties that can help with sneezing, coughing, and skin irritations.

What can I give my dog for allergies without going to the vet?

Benadryl and Zyrtec are examples of antihistamines.

ANTI-HISTAMINES, such as diphenhydramine (Benadryl®), certirizine (Zyrtec®), and hydroxyzine, are commonly used to treat allergy symptoms in humans and can also be used in dogs. These medications work by preventing histamine from binding to cells and acting.

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