Is it bad for dogs to eat antihistamine

Are Antihistamines For Dogs Safe?

NOTE: You should always contact your veterinarian for advice and guidance before giving a pet any over the counter medication

No dog owner likes to see their pup sneezing, coughing and irritated due to an allergy. Yet finding a solution to the problem seems to be a lot harder than it should be.

Effective, safe and dog-specific allergy medicines seem to be annoyingly difficult to get your hands on (although they do exist), and so its only natural that dog owners have begun to question whether our own human antihistamines could help alleviate the symptoms of a struggling four-legged friend.

From Benadryl to Piriton, this article will explore the pros and cons of giving your dog human antihistamines, helping you to put a stop to your animals agitation!

Can I give my dog human antihistamines?

Human antihistamines are usually safe for dogs to take, but make sure you check the brand and correct dosage amount with your vet before giving one to your pet.

The most commonly used antihistamines are diphenhydramine, cetirizine and loratadine, which can all help relieve symptoms such as itching and sneezing for dogs.

Although sounding decidedly scientific, you may know these better as the main ingredients in well known branded allergy drugs such as Benadryl (diphenhydramine), Claritin (loratadine) and Zyrtec (cetirizine).

Just like with humans, these antihistamines can sometimes have side effects on dogs and so you need to be wary. Thankfully these arent usually harmful and tend to result in either making a dog very drowsy or opposingly making them behave more hyperactive or erratically.

But although most brands are generally safe, you do need to be careful when shopping for over the counter antihistamines. Occasionally they will contain other harmful ingredients such as decongestants which could be toxic for your dog.

Such mistakes can be avoided by thoroughly observing the label and ingredients list, or by getting in touch with your vet!

Best antihistamine for dogs

The best antihistamine for dogs is the Vets Best Seasonal Allergy Tablet, purely because its one of the only antihistamines on the market to be made especially for canines and not humans.

In fact, its not even suitable for human consumption!

This means you no longer have to stress over whether you can give your pooch a Piriton or not, as theres already a doggy designed option readily available!

While most canine allergy relief products are merely a vitamin or fatty acid supplement designed to boost itchy skin, Vet Bests tablets are one of the few to contain an actual antihistamine that prevents your pups body from reacting to allergens and stimuli they are sensitive to.

The tablets utilise the active ingredient diphenhydramine hydrochloride, the same antihistamine used in popular human allergy tablets such as Benadryl. And unlike other dog allergy medicines like Apoquel, Vets Best doesnt require a prescription, making them a cheaper and less time-consuming, quick fix!

The tablets work in the same way as a human drug, by blocking the bodys H-1 receptors in the blood vessels and muscles. This prevents your dogs body from producing histamines when confronted with non-harmful allergens, and in turn prevents irritating reactions like itching, sneezing, watery eyes and a runny nose.

Anyone who owns an allergy-suffering pup knows that skin issues are often the most troublesome symptom. So Vets Best tablets are a particular lifesaver when it comes to providing fast relief to minor skin irritations, helping to reduce constant scratching.

As the tablet is designed for dogs, working out the right dosage for your pet pooch is also totally hassle-free. Here is the simple dosage table for you to follow, based entirely on your pups weight!

• 10-24 lbs: 1/2 tablet
• 25-49 lbs: 1 tablet
• 50-75 lbs: 1 1/2 tablets
• 75 lbs+: 2 tablets

As with any medicines, you should always check with your vet before administering Vets Best to your pet, just to be safe.

Ask a veterinarian before use if your pet has:

• Glaucoma
• Asthma
• Heart Disease
• Hypertension
• Urinary Bladder Obstruction
• Enlarged Prostate Gland
• Hyperthyroidism
• Is Pregnant or Nursing
• Weighs under 15 lbs

Its also particularly important to avoid using it in combination with any other product which contains diphenhydramine, to help avoid overdose

Can I give my dog Benadryl?

Although it might seem strange, it is usually safe to give your dog Benadryl to relieve allergy symptoms, and its even prescribed or recommended by some vets.

However, like with any drug, it may not particularly be the best solution to your pups problem!

Benadryl has been known to have adverse effects when taken in combination with other medications your dog may be on, which is why its always imperative to talk to your vet before administering it.

How and when to use Benadryl for dog allergies

Benadryl is best for dogs who are suffering from low to mild allergic symptoms because the drug isnt specifically formulated for canines, so their effectiveness can range from mild to effective.

However, vets still often use it to ease environmental allergies in pups and also to deal with reactions to insect bites or stings. It can also be used as a pre-treatment for possible vaccine reactions.

It is to be taken orally, so it is often easiest to add a pill to your dogs food.

Benadryl is not a suitable medication if your pet is having an acute allergic reaction.

Symptoms of an acute reaction are characterised by facial swellings, difficulty breathing and in rare cases anaphylactic shock.

When to avoid Benadryl

Benadryl is one of the safest over-the-counter drugs that can double up as a doggy medication.

However, for canines with certain health issues, they are not the smartest choice.

For pregnant dogs, dogs with glaucoma and canines with low blood pressure or cardiac conditions, taking Benadryl is an unneeded safety risk and so its best to avoid using it.

And its also important to note that if you make the wrong choice, they can be a risk for healthy dogs too. Thats because some Benadryl tablets are combined with other medicines which make them unsuitable and so its vital you ensure your Benadryl tablets contain only diphenhydramine.

Whats the correct Benadryl dosage for a dog?

The recommended dosage of Benadryl for a dog is 1 mg per pound of body weight, to be taken 2-3 times a day. Standard tablets are 25 mg, and so they are the perfect size for a 25 lbs dog.

Obviously this gets trickier when your pup is slightly larger or smaller than 25 lbs and so the most reliable thing to do is ask your veterinarian for the correct dosage for your canine.

Can I give my dog Piriton?

It is generally considered safe to give a dog Piriton to treat environmental allergies, as long as you have sought guidance from a veterinary professional first.

Unlike some of the previously mentioned antihistamines, Piriton is mainly made up of the ingredient chlorphenamine. In the human world, this drug is mainly used to treat runny, itchy noses and hive symptoms, making it a great anti-allergy tablet.

However similar to Benadryl, it is often prescribed by vets to help treat dogs suffering allergic reactions.

But as with Benadryl, if using Piriton for a pup, you should be wary of there being a chance of side effects.

In Piriton these can include; drowsiness, constipation, dry mouth and nausea. In rare instances, these can be more severe and may include respiratory issues, irritability, poor coordination, urination issues and affected concentration.

Thankfully, all of these reactions tend to be fairly mild if they actually occur.

When to avoid Piriton for dogs

If your dog has an existing medical condition, it isnt worth taking the risk and giving them Piriton without the advice of a vet.

Whats the correct Piriton dosage for a dog?

Typically, vets recommend dosing by the dogs weight at 0.91.7 mg per pound of body weight, every 8 to 12 hours.

Its important to remember though that this is merely a guideline, and as always, the best way to determine the correct dosage for your dog is to contact your vet.

Best Antihistamines For Dogs: Benefits, Dose, Risks & More

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Dog owners know the struggle of dealing with a pup whos constantly itching, scratching, and sneezing. After extensive research and consultation with veterinarians and studies, our research team found the best antihistamines for dogs to relieve their allergies. But with so many options on the market, how do you know which antihistamine is right for your pup? Well, weve got you covered with a breakdown of the most effective antihistamines treatment for dogs, their benefits, potential side effects, when to use them, why brands are better for specific allergies and everything in between. Lets get started!

Best Antihistamines For Dogs At A Glance

Scroll to the right to see all our recommendations for the best antihistamines for dogs.

What Are Antihistamines For Dogs?

Antihistamines are medications designed to help reduce allergy symptoms by blocking the effects of histamines. Histamines are chemicals your dogs immune system releases in response to an allergen. Various factors, including environmental allergens such as pollen, dust mites, mold spores, and food allergens, can cause dog allergies. Numerous antihistamines are available for use in dogs, both over-the-counter and prescription-based.

Types of Antihistamines

• First generation antihistamines
• Second generation antihistamines

Popular Antihistamines For Dogs

Here are some of the most commonly used antihistamines to help your dog battle allergies.

Which Generation Of Antihistamie Is Better For Dogs?

As the name suggests, first-generation antihistamines were the initial type to be approved by the Food and Drug Administration (FDA). Their approval in the United States began in the 1930s and continues to be prescribed today.

These antihistamines act on histamine receptors in the brain, spinal cord, and other receptors. A notable characteristic of this generation of antihistamines is their ability to cross the blood-brain barrier, which leads to drowsiness.

The FDA approved second-generation antihistamines, which entered the market in the 1980s. Unlike first-generation antihistamines, second-generation ones do not cross the blood-brain barrier to the same extent and therefore do not cause drowsiness at standard dosage levels. As a result, second-generation antihistamines are considered safer than their first-generation counterparts due to their reduced propensity for causing drowsiness and fewer drug interactions.

When Should Antihistamines For Dogs Be Used?

Antihistamines for dogs should only be used under the guidance of your veterinarian.

Vets may recommend antihistamines as the first line of treatment for dog allergies for a few reasons:

• Mild to moderate allergies. Antihistamines are often effective in managing mild to moderate allergic reactions in dogs. These reactions may include itching, redness, and swelling. A vet might suggest trying an antihistamine if the symptoms are not severe.
• Safer than other dog allergy medications. Antihistamines are generally considered safe for most dogs when used appropriately. The risk of adverse side effects is relatively low, especially compared to other dog allergy medications like corticosteroids or immunosuppressive drugs.
• Over-the-counter availability. Many antihistamines are available over the counter, making them an accessible and cost-effective option for pet owners. This can be especially helpful for dogs with occasional allergy flare-ups.
• Minimal drug interactions. Antihistamines typically have fewer drug interactions than other allergy medications, making them safer for dogs on multiple medications or with underlying health conditions.

However, its important to note that not all dogs respond well to antihistamines, which may not be effective for all allergies. If your dogs allergies are severe or persistent, or the antihistamine isnt providing sufficient relief, your vet may recommend other medications, such as corticosteroids, immunosuppressive drugs, or allergen-specific immunotherapy.

Always consult with your veterinarian before administering any medication to your dog, as the appropriate treatment will depend on the specific cause and severity of the allergy.

Can Dogs Take Antihistamines?

Yes, dogs can take antihistamines, but its essential to consult with a veterinarian before administering them to your pet.

Some antihistamines are safe and effective for healthy adult dogs as part of a treatment plan to address canine allergies. However, not all antihistamines work for every dog, and their effectiveness varies depending on the individual dog. This means you may need to try several antihistamines under your vets guidance to find one that works for your pet.

If your dog is prescribed antihistamines, its essential to try them for 2-3 weeks to evaluate their effectiveness. If they dont help, consult your vet about trying another antihistamine. Remember that antihistamines may not completely solve your dogs allergies.

Remember, antihistaminesare inappropriate for emergencies, such as during a life-threatening allergic reaction. Studies have shown that antihistamines are only effective between 25% to 54% of the time.^[1]

A study at the Veterinary Medical Teaching Hospital of the University of California, where 178 of 271 dogswith atopic dermatitis were prescribed antihistamines, revealed that only 54% of dogs given antihistamines responded favorably to these treatments, with 27% of the responses rated as good and 27% rated as moderate.^[2]However, anecdotal evidence and survey research suggest antihistamines are good dog allergy relief options.^[3]

Benadryl(diphenhydramine) is the most popular. Other safe antihistamines for dogs includeClaritin(Loratadine) andZyrtec(cetirizine).

And because dogs exhibit varying reactions to different antihistamines, if your dog has not seen any improvements after two weeks, you need to try other antihistamines before determining their effectiveness in your dog.

Dog Antihistamine Benefits

Over-the-counter (OTC) antihistamines can help treat symptoms such as:

• Itchiness
• Irritation
• Inflammation and swelling
• Hives
• redness
• Runny nose
• Sneezing
• Allergic conjunctivitis
• Motion sickness sedation
• Calming effect
• Hay fever
• Food allergies

Antihistamine Side Effects On Dogs

Antihistamines areusuallysafe but can make some dogs drowsy and others hyperactive. As with any drug, there is always a chance of side effects.

Some of the common side effects of first-generation antihistamines include:

• Drowsiness
• Dry mouth, dry eyes
• Blurred or double vision
• Dizziness and headache
• Rapid heart rate
• Hyperactivity
• Urinary retention
• Low blood pressure

Some of the common side effects of second-generation antihistamines include:

• Abdominal pain or discomfort
• Nausea or vomiting.

Other Risks

Its important to note that not all over-the-counter antihistamines are safe for dogs. While Benadryl, Claritin, and Zyrtecare antihistamines typically safe and recommended by vets, some may contain added decongestants, which can be harmful to canines.

The most common types of decongestants are pseudoephedrine and phenylephrine. These drugs are commonly found in allergy medications. Antihistamines likeContac, Actifed, Sudafed, Tavist-D, Claritin-D, or any other brand antihistamine with Dadded to the name are best avoided. The D indicates the medicine contains a decongestant, but always read the labels carefully before administering any OTC pills to your pets and do so at your vets discretion. According to the Pet Poison Helpline, decongestants can be deadly in dogs. They can result in vomiting, dilated pupils, severe blood pressure changes (hypertension), abnormal heart rhythms and rates, tremors, and seizures.^[4]

Antihistamines can also interfere with other medications, vitamins, supplements, or herbal remedies that your dog may be taking. Its key to tell your vet about everything your dog is taking.

If your dog experiences any adverse reactions or if the allergy symptoms persist or worsen, its essential to contact your veterinarian immediately.

Best Over The Counter Antihistamine For Dogs

Whether you need the best antihistamine for dogs with skin allergies, itching, or other allergy symptoms, these are your top options.

PRO TIP: Use peanut butter,pill pockets,orsome other trickto get your dog to take antihistamine tablets, as they are a bit bitter.

Best Overall Antihistamines For Dogs First Generation

Benadryl (also known as diphenhydramine) is considered safe for dogs and cats and is commonly used in veterinary clinics nationwide. Know that Diphenhydramine is a first-generation ethanolamine-derivative antihistamine. This class of antihistamines can cross the blood-brain barrier, leading to their high effectiveness and increased side effects than other antihistamines. The American Kennel Club says that if your dog suffers from mild-to-moderate allergies, Benadryl is a great medication to use.^[5]

Benadryl for dog allergies works by blocking H1 receptors to keep histamines at bay, reducing symptoms of allergies. Jessica Vogelsang, DVM at PetMD, says the drug is well-tolerated and has a wide safety margin for use on dogs. Vets normally recommend it for environmental allergies, allergic reactions to insect bites or stings, and other common dog allergy symptoms like sneezing, hives, and itchiness. Benadryl typically provides faster relief than other antihistamines.

Benadryl has sedative properties, so your dog could get very drowsy. Some Benadryl formulas contain Xylitol, which is deadly to dogs. Avoid formulas with dyes. You may also want to stick to the childrens formula of Benadryl, as the adult version contains alcohol, which is toxic to dogs.

Dog Dosage

The correct dosage of Benadryl for dogs depends on the dogs weight. But, generally, vets recommend 1 milligram per pound of body weight, given twice daily. For easier dosing, you can use the liquid formula of Benadryl. Its easier to measure.

Precautions

Benadryl is not advised to use on dogs with high blood pressure, seizures, bladder issues, lung disease, or glaucoma. It may negatively interact with other medications.

Best Antihistamines For Dogs Second Generation

The best thing about Claritin is that its a second-generation antihistamine, so it doesnt usually cause drowsiness as first-generation antihistamines like Benadryl. Claritin is the most potent medication in the class, which has made it the go-to choice for doctors and veterinarians.

Loratadine does not cross the blood-brain barrier and does not cause drowsiness. It also is much longer-lasting than some of the classic antihistamines in use.^[6] Always check the label on theClaritin. Some versions (Claritin D) are made with pseudoephedrine, a decongestant. Decongestants arehighly toxic to dogs, so youll want to avoid such formulations. Claritin also comes in a quick-dissolve form, but that may contain Xylitol, which is poisonous to dogs.

The safest option is the original Claritin product. The regular childrens formula is also safe, but you must adjust the dosage accordingly. It comes in tablet and liquid form; either is good. Like all antihistamines, Loratadine blocks the effects of histamine in the body, thus blocking the allergic reaction.

Dosage

Give approximately 0.1 to 0.5 milligrams/pound of body weight once to twice daily.

Precautions

Loratadine can be given with or without food. Because Loratadine has been known to decrease tear production in humans, use it with caution in dogs withdry eyes. Ketoconazole (an antifungal) and erythromycin (an antibiotic) increase loratadine levels with concurrent use. Do not use these medications together.

Best Antihistamines For Dogs With Skin Allergies

Zyrtecfor dogs is a popular prescription for canines suffering from allergic reactions like itchy skin, and it doesnt have the effect of leaving your pet sedated and lethargic.^[7] The active ingredient in Zyrtec is cetirizine,which veterinarians deem safe when administered appropriately. Unlike Benadryl, drowsiness with Zyrtec is often very rare. Research shows that oral cetirizine prevents cutaneous allergic reactions without any apparent adverse effects in dogs.^[8]

Patty Khuly, DVM from PetMD, says Zyrtec seems to help quite a bit, far more than Benadryls Diphenhydramine. Onestudy of dogs with atopic dermatitisfound that Zyrtec reduced itching in 18% of the dogs studied. According to a more successful study with a 100% efficacy rate, dogs who consumed Zyrtec before receiving histamine injections had less inflammation around the injection site than those who did not. A separatestudy found that the active ingredient in Zyrtec was notably more effective thanBenadrylat minimizing the bodys immune response.^[9][10]

Never, ever use Zyrtec-D. It contains pseudoephedrine,a decongestant incredibly harmful to dogs and can cause high blood pressure, seizures, and even death.

Dosage

Generally, a dose of Zyrtec for dogs is determinedby theirsize and the allergy being treated. Approximately 0.5 mg/pound of body weight is normally recommended, given once to twice daily. However, always ask your vet.

Precautions

Dogs struggling withkidneyorliverproblems could worsen symptoms if given Zyrtec. Nursing or pregnant dogs should not consume Zyrtec. The medication can be passed onto puppies through the mothers milk. Never give Zyrtec to dogs allergic to antihistamines, especially those with cetirizine or Hydroxyzine. This may cause a life-threatening reaction calledanaphylactic shock.

Best Dog Specific Antihistamine PetArmor Antihistamine

PetArmor Antihistamine is an over-the-counter medication designed to help relieve allergy symptoms in dogs. It contains Diphenhydramine, the same active ingredient found in Benadryl. Diphenhydramine is a first-generation antihistamine that works by blocking the effects of histamine in the body, which can help to reduce symptoms such as itching, sneezing, and runny nose. PetArmor typically comes in tablets or liquid, which can be easily administered to your dog.

Honorable Mention Sentry Allergy Relief For Dogs

Sentry is another Antihistamine available for dogs. Sentry allergy relief dog tablets contain the same active ingredient as Benadryl (Diphenhydramine HCl), which is essentially the same under a different brand name.

Best Prescription Antihistamine For Dogs

Hydroxyzine For Dogs

Can I give my dog Hydroxyzine? Yes. While less commonly used because a prescription is needed, Hydroxyzine is one of the most effective antihistamines available for dogs. Common brand names for Hydroxyzine are Atarax (Hydroxyzine HCl) and Vistaril (Hydroxyzine pamoate). It can treat all common allergic conditions. It usuallytakeseffect quickly, in about 1 to 2 hours, and improvement in clinical signsshouldfollow.

Dosage

Dosing is similar to Benedryl at 1mg per pound body weight two times daily. Talk to your vet.

Dog Antihistamine Dosage Chart

This dog antihistamine dosage chart provides the most common dosages prescribed.

Natural Antihistamine For Dogs

While there are no true natural antihistamines, certain natural remedies and supplements can help alleviate allergy symptoms in dogs. Some options include:

• Quercetin: A bioflavonoid found in fruits and vegetables, quercetin has antioxidant and anti-inflammatory properties that may help reduce itching and inflammation.
• Omega-3 fatty acids: Found in fish oil, omega-3 fatty acids can help decrease inflammation and support skin health, potentially providing relief from allergy symptoms.
• Probiotics: Maintaining a healthy gut microbiome can help support your dogs immune system, potentially reducing the severity of allergic reactions.

Always consult your veterinarian before introducing natural remedies or supplements to your dogs diet.

Dogs That Should Not Take Antihistamines

If your dog suffers from any of the following conditions, antihistamines might not be safe for them.

• Glaucoma
• Hypothyroidism
• Heart disease
• Urinary problems
• High blood pressure (Hypertension)
• Cardiovascular issues
• Liver problems

Never try to treat your dog without the help of your vet because you might make them even sicker.

Antihistamine For Dogs Frequently Asked Questions

Here are the most commonly asked questions about antihistamines and dogs.

Yes, dogs can take Loratadine (known as Claritin) to help alleviate allergy symptoms. Loratadine is a second-generation antihistamine less likely to cause drowsiness than first-generation antihistamines like diphenhDiphenhydramineryl). Additionally, give your dog the regular loratadine formulation, not the D version (e.g., Claritin-D), which contains pseudoephedrine. Pseudoephedrine can be toxic to dogs, causing severe side effects and death.

Combining antihistamines with other medications is sometimes possible, depending on the specific medications involved and the treatment of the medical condition. Some medicines can interact with antihistamines, leading to increased side effects or reduced effectiveness of either or both drugs.

Yes, antihistamine eye drops are specifically formulated for dogs to help alleviate eye-related allergy symptoms such as redness, itching, and watery eyes. One commonly used antihistamine eye drop for dogs is olopatadine (Patanol), which can help alleviate eye irritation and itching caused by allergies.

Yes, liquid antihistamines are available for dogs, which can be a convenient option for pet owners, especially if their dogs have difficulty taking pills. Common liquids antihistamines for dogs areBenadryl and Zyrtec.

If you dont have access to antihistamines for your dog, there are alternative remedies and strategies to help alleviate your dogs allergy symptoms. Some are cool baths, Over-the-counter hydrocortisone creams or sprays, quercetin and probiotics.

Sometimes, you can give your dog human antihistamines to help alleviate allergy symptoms, but it is crucial to consult your veterinarian before doing so. Some human antihistamines are safe for dogs when given in the appropriate dosage, while others can be harmful or toxic to your pet.

An antihistamine can help alleviate the symptoms and reduce the inflammation and swelling when a dog gets stung by a bee. One common antihistamine used for this purpose is diphenhDiphenhydramineryl).

Antihistamines for dogs, particularly first-generation antihistamines like diphenhDiphenhydramineryl), can help prevent car motion sickness. Diphenhydramine has a sedating effect that can help calm your dog during car rides, making it less likely for them to experience motion sickness.

You can give your dog Piriton (chlorphenamine), an antihistamine, to help alleviate allergy symptoms such as itching, sneezing, and watery eyes. Piriton can also help with mild reactions to insect bites or stings.

Which is better for dog allergies Claritin or Zyrtec? Zyrtec and Claritin are second-generation antihistamines, so they are evenly matched not to make your dog drowsy or sleepy. Regarding effectiveness, a studyfound that both drugs are absorbed into the bloodstream at equal rates within 12 hours of taking the med. Both drugs have few side effects and are generally considered safe for most dogs. They work the same way once in your pets body. Claritin is more likely to interact with other drugs than Zyrtec because it is broken down in the liver by enzymes other drugs can inhibit. In contrast, Cetirizine (Zyrtec) is not significantlymetabolizedin theliver.

The biggest difference between Benadryl vs. Zyrtec is that Benadryl is a first-generation antihistamine, meaning is more likely to make your dogs drowsy and have more side effects than Zyrtec, a second-gen antihistamine. Research shows that oral cetirizine effectively prevented cutaneous allergic reactions without any obvious adverse effects in dogs. In contrast, oral Diphenhydramine (the active ingredient in Benadryl) failed to show an inhibitory effect.^[8]

Is Claritin or Benadryl better for dogs? While both can alleviate allergy symptoms, Claritin is the safer option, given its a second-generation antihistamine. Claritin is usually recommended over Benadryl because Claritin has fewer sedating side effects. Claritin only needs to be taken once daily, which may be preferred for some dog owners.

Best Antihistamine For Dogs Conclusion

Based on our research and scientific evidence, Hydroxyzine is the best antihistamines prescription option for dogs. The best OTC antihistamine for dog allergies is Benadryl and Claritin. Zyrtec is recommended for skin allergies.

Hydroxyzine and Zyrtec (Cetirizine) have demonstrable anti-histaminic action in the dog and should be the preferable antihistamine in this species, says the International Task Force on Canine Atopic Dermatitis.

For optimal efficacy, antihistamines should be used as preventatives, and they should preferably be given continuously daily. If antihistamines dont work for your dog, its time to consider another treatment option. You can also get ahead of the allergy by performing a dog allergy test to avoid allergy symptoms altogether.

Dealing with allergies can be a challenging experience, but knowing how and when to use an antihistamine for dogs can make all the difference. Taking a proactive approach is the best medicine for treating dog allergies.

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