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How Much Benadryl for a Dog

Benadryl is widely used antihistaminic in humans and dogs blocking the biological effects of histamine inside the organism. The active ingredient in Benadryl is diphenhydramine. Diphenhydramine belongs to the class of first-generation antihistamines; this means that it can cross the blood-brain barrier which makes it very effective but it also increases the risk of possible adverse reactions.

Primarily the medication alleviates symptoms induced by allergic reactions such as intense inching, eye discharge, frequent sneezing, nose discharge, and can be also used to treat anxiety and motion sickness in dogs.

While our blog’s mascot is a Cavalier King Charles Spaniel, these tips apply to any breed.

Why Give your Dog Benadryl?

The active ingredient in Benadryl is diphenhydramine. Primarily the medication alleviates symptoms induced by allergic reactions such as intense inching, eye discharge, frequent sneezing, nose discharge, and can be also used to treat anxiety and motion sickness in dogs.

Generally, diphenhydramine is used in treating and eliminating symptoms of allergy, both seasonal and non-seasonal. Furthermore, it reduces the symptoms of a common cold in dogs and it has anti-anaphylactic characteristics. This is especially useful when dogs get bitten by insects and the area around the bite starts to swell. This is a localized type of allergic reaction which is really painful for the dog. Also, veterinarians sometimes prescribe Benadryl for the treatment of heartworm disease or tumors, but the effective mechanisms in such cases aren’t thoroughly investigated.

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It’s used for dogs suffering from:

  • Food allergies
  • Environmental allergies
  • Seasonal allergies
  • Allergies due to insect bites
  • Allergies due to snake bites

These are a localized type of allergic reaction which is really painful for the dog. Also, veterinarians sometimes prescribe Benadryl for the treatment of heartworm disease or tumors, but the effect mechanisms in such cases aren’t thoroughly investigated.

Hives in dogs usually appear as a result of various types of allergic reactions and Benadryl can be used to treat them. The medication will provide immediate relief but make sure you get your dog checked for other underlying conditions.

You can also calm your furry friend down with Benadryl. The active substance diphenhydramine causes drowsiness as a side-effect so using the drug to ease the symptoms of anxiety is helpful. Dogs with motion sickness can also benefit from it.

Cell degranulation in dogs suffering from mast cell tumors causes the enormous release of histamine in the bloodstream. Alleviating the symptoms can be achieved with doses of Benadryl recommended by your veterinarian.

Heartworm in dogs is a nasty disease and the therapy can be exhausting for the dog’s body. The side-effects and unwanted symptoms can be alleviated with Benadryl.

Unfortunately, our dogs cannot tell us what’s wrong with them in a concise way. They express that the air feels funny for them or that their bellies are troubled right after eating. Allergies can be easily mistaken with other conditions such as skin infections, so in this case, Benadryl won’t do any good.

How Much Benadryl Should I Give? – Dosage Information

Similar to most other medications, the Benadryl dosage for a dog highly depends on the dog’s size and weight. It’s always best to consult your veterinarian first for the appropriate dosage for your pet.

Dosage Based on Weight

Considering the weight of the dogs, they can be separated into three categories: dogs weighing 30 lbs or less, dogs weighing 30-50 lbs and dogs over 50 lbs. The appropriate dosage for the first category is 10 mg, for the second category 25 mg and 50 mg for the third category.

More accurately the dogs should be treated with 1 mg of Benadryl for 1 lb of body mass. That means if your dog weighs 23 lbs, you should give him 23 mg of the medication. For treatment of acute allergic-mediated inflammations, the medication should be given 3 times a day in an interval of 8 hours.

More accurately the dogs should be treated with 1 mg of Benadryl for 1 lb of body mass. That means if your dog weighs 23 lbs, you should give him 23 mg of the medication. For the treatment of acute allergic-mediated inflammations, the medication should be given 3 times a day in an interval of 8 hours.

When you stick to the prescribed dosage there isn’t a big risk of negative impacts of the medication. In cases of overdosing, dogs are usually presented with signs of CNS (Central Nervous System) excitability manifested with seizures, increased heart rate, constipation and dilated pupils. These situations can be potentially life treating so you should take your dog to the vet as soon as these symptoms occur.

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Side-Effects

If you already consulted your veterinarian about the possible side effects of giving your dog Benadryl, then you probably know that negative symptoms can and do occur. That’s why the best option when introducing the new medicine to your dog is waiting and observing the animal for a couple of hours until you are sure that nothing bad is going on. The medication is considered to be pretty safe but never take that information for granted.

Most common side effects include hypersalivation, fast and shallow breathing, rapid heart rate, retention of urine, sedation, and dry mouth. Rarely symptoms such as diarrhea, vomiting, appetite loss or increased appetite can be observed.

In certain cases, the effects of Benadryl can be fatal for your dog. That’s why you should always consult your veterinarians first before giving Benadryl.

You should avoid Benadryl when the dog suffers from:

  • Seizures
  • Heart disease
  • Prostatic Hypertrophy
  • Glaucoma
  • Allergic Lung Disease

There are some pretty safe substitutes, natural ones for managing allergic reactions in dogs.

Irritated and itchy skin can be treated with oatmeal bats. You just need to mix oatmeal with water and apply the mixture on the dog’s skin. Let the furball soak for 5-10 minutes to take effect and rinse it with clean water.

Coconut oil is another holistic medicine you can use. The substance is high in lauric acid and can be either applied on the dog’s coat or given into its meal.

This post is brought to you by our pet deals and coupon site, Pet Coupon.  Check us out for our best deals and favorite pet supplies and gift ideas.  As always, please check with your veterinarian if you have questions about treatments and your dog’s health.

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