Claritin vs Benadryl: Is Claritin or Benadryl Better for Dogs?

The medications Claritin and Benadryl are among the most popular antihistamines for humans. Their effects have been well-studied, and both medications have a place in the medicine cabinet. However, when it comes to your dog, you need to be more concerned with which is safer and more effective in his case rather than just their similarities.

Benadryl vs Claritin for dogs

Is Claritin or Benadryl better for dogs?

If your dog is suffering from allergies, you can consider using Claritin or Benadryl. The main difference between these two drugs is that Claritin is the second generation of antihistamine and it has fewer side effects than Benadryl.

Both of these drugs are antihistamines and work by preventing histamines from being released into the body. While they can be helpful in treating seasonal allergies, they are not designed for long-term use or to treat chronic conditions.

Claritin and Benadryl have different side effects and dosing requirements. The choice of which medication to use will depend on your dog’s individual needs.

You must not give this medication to your pet if he has liver or kidney problems as it might cause severe complications and even death.

Benadryl for dogs reviews

Benadryl is a very effective over-the-counter antihistamine. It works by blocking histamines, which are responsible for many allergic reactions. It also has some sedative properties that may help dogs with anxiety.

“Benadryl is a great product. It is the only thing that worked to reduce my dog’s itching from allergies. I give it to her twice a day and it has helped tremendously.”

“I have been using Benadryl for my dog’s allergies for years now and it has worked wonders! My dog used to itch all day and night, but since I started giving him this medicine, he doesn’t anymore.”

“I have an English Mastiff who was constantly scratching and biting herself, even after using Frontline spray for fleas and Heartgard for heartworm prevention. The vet recommended Benadryl, but because of the size of my dog, he suggested using Benadryl for dogs instead of children’s Benadryl because it contains more active ingredients per pill. He told me to give her one pill every morning and night for two weeks and then if she still had problems, he would prescribe something stronger. Well, after only two days on Benadryl, my dog stopped scratching! She has been on it now for almost 2 weeks and there is no sign of any further itching or biting at all! So far it has worked like a charm!”

Claritin for dogs reviews

Reviewers say that Claritin works well for their pets with mild allergies, but not so well for more severe cases. Some reviewers also said their dogs didn’t like taking the medication at all.

“I have been using this product for a long time. I love it because it is an effective non-prescription medication that helps my dog with allergies.”

“The thing I like most about Claritin is that it doesn’t cause any of the negative side effects that other medications do. The medicine comes in chewable tablets and is easy to administer. My dog takes it well and doesn’t mind me giving it to him at all.”

“I started using Claritin when my dog was a puppy, and he has been taking it ever since with no problems at all. My vet recommended this medication because he knew how much trouble she had getting over her seasonal allergies each year. We tried several different brands of allergy medication before finding one that worked best for her, but this one worked wonders! When we first started giving her the pills, she only needed one per day because they were so strong, but now she only needs half a pill every other day or so during allergy season in order to stay healthy and happy all year long.”

“I have been using Claritin for my dog for years. I have tried many different brands and am not sure why I always come back to this one. It is the only one that works and I only need to give it once a day.”

“This product works great for our dog who has allergies. She gets a little red around her eyes, but she does not scratch or itch as much as she did before we started using this medicine.”

How much Benadryl can I give my dog?

The appropriate dose of Benadryl depends on the dog’s weight but is usually 1 mg per pound of body weight. For example, a 20-pound dog would need to receive 20 mg of Benadryl twice or three times a day.

Benadryl dosage for dogs
Dog’s weight Benadryl dosage
5 pounds half of a 12.5 mg tablet
10 pounds one 12.5 mg tablet
20 pounds one 25 mg tablet
50 pounds two 25 mg tablets
80 pounds three 25 mg tablets
100 pounds four 25 mg tablets

How much Claritin can I give my dog?

The amount of Claritin you give your dog depends on the weight of your dog. Follow the directions on the product label carefully, and ask your veterinarian if you have any questions.

Claritin dosage for dogs
Dog’s weight Claritin dosage
less than or equal to 20 pounds half of a 5 mg tablet
21 to 50 pounds one 5 mg tablet, or half of a 10 mg tablet
greater than 50 pounds one 10 mg tablet, or two 5 mg tablets

How long does it take for Claritin or Benadryl to kick in for dogs?

The time it takes for either one of these medications to kick in varies from dog to dog. It can take anywhere from 30 minutes to an hour for Claritin or Benadryl to kick in.

Can I give my dog Claritin in the morning and Benadryl at night?

A little Claritin in the morning is fine. Benadryl is a sedative and can cause drowsiness. You should give it to your dog at night, before bedtime.

It’s best to consult with your veterinarian before giving your dog any medication, especially if they have other medical conditions.

What happens if I give my dog Claritin and Benadryl together?

Theoretically, if you are giving your dog both of these at the same time, then it may be a little too much for your dog’s system.

If you find that your dog becomes lethargic or overly sedated after taking either of these medications, stop using them immediately and talk to your veterinarian about other options.

What do vets recommend for dogs with itchy skin?

Apoquel is a prescription medication used to treat dogs with atopic dermatitis. This prescription medication works by inhibiting certain molecules in the body called cytokines which play an important role in immune responses like inflammation and allergic reactions.

Apoquel is considered safe for use in dogs but can cause side effects including vomiting, diarrhea, lethargy, and loss of appetite. However, these effects are usually temporary and subside within 24 hours after administration of the drug.

There is no one-size-fits-all treatment for itchy skin in dogs. The causes can be varied and complex, so the treatment must be tailored to the individual dog.

The best way to treat a dog’s itchy skin is to get to the root cause of the problem. The first step is to visit your veterinarian for a physical exam and blood work. It’s important for them to rule out any underlying causes of itchiness, such as parasites or an allergy.

What is a natural antihistamine for dogs?

The main natural antihistamine for dogs is quercetin. Quercetin is a flavonoid that supports the body’s natural defenses against allergens such as pollen and dust mites. It’s also used to treat symptoms of asthma, eczema, and hay fever.

Quercetin is a natural compound found in fruits and vegetables. Quercetin supplements are available in capsule form at health food stores or online pharmacies like or

Caution: Quercetin is generally safe when taken as directed on the label, but some people may experience side effects such as nausea or diarrhea when taking large doses.

Conclusion of Benadryl vs Claritin for dogs

If you have a dog and they are suffering from allergies, then you might be wondering which medicine is best. The answer is that it depends on your pet. Some dogs react better to Benadryl than Claritin, and vice versa.

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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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