Benadryl Dosage for Dogs Calculator

dog benadryl dosage calculator

Benadryl Dosage for Dogs Calculator provides a way to find exact dosage for your dog. That is most important thing as a slight mistake in wrong dosage can be fatal for dogs. Therefore Benadry dog dosage has to be administered carefully!

What is Benadryl ?

Benadryl invented in 1943 by a chemical engineer named Dr George Rieveschl, was approved in 1946 by FDA. It is a kind of antihistamine drug widely used as a short term remedy for any type of allergy. Antihistamine for dogs has multiple applications – our Benadryl dosage for dogs is popular for the treatment of the following types of problems in Dogs:

  1. anxiety in dogs related to thunderstorms or fireworks etc.
  2. allergies caused by mosquito, insects or snake bites, skin, food, or airborne allergies.
  3. motion sickness by planes, cars, or boats.
  4. for tumour treatment

There are two forms of the medicine- liquid Benadryl dosage for dogs and Benadryl tablets for dogs or capsule.

Dosage of Benadryl for Dog Calculator

The calculator will answer the very common question “how much benadryl can I give my dog ? has based the standard dosage formula which is very simple. The oral Benadryl for dog is prescribed on general formula of 1 mg per pound of bodyweight, given 2-3 times a day. Most diphenhydramine tablets are 25 mg, which is the size used for a 25-pound dog. You can find an antihistamine (Benadryl is an antihistamine drug) dose chart at Breckenridge Hospital Animal Hospital website (pdf chart ). But the safest way to give the proper dose is to ask your veterinarian.

Benadryl Dosage for Dog Calculator

Benadryl Dog Dosage Chart

Max Dose (every 8-12 hours)Max Dose (every 8-12 hours)
Dog WeightTablet (mg)Children’s Liquid (ml)
1 lbs – 10 lbs1 mg – 10 mg0.4 ml – 4 ml
10 lbs – 20 lbs10 mg – 20 mg4 ml – 8 ml
20 lbs – 30 lbs20 mg – 30 mg8 ml – 12 ml
30 lbs – 40 lbs30 mg – 40 mg12 ml – 16 ml
40 lbs – 50 lbs40 mg – 50 mg16 ml – 20 ml
50 lbs – 60 lbs50 mg – 60 mg20 ml – 24 ml
60 lbs – 70 lbs60 mg – 70 mg24 ml – 28 ml
70 lbs – 80 lbs70 mg – 80 mg28 ml – 32 ml
80 lbs – 90 lbs80 mg – 90 mg32 ml – 36 ml
90 lb – 100 lbs90 mg – 100 mg32 ml – 36 ml
100 lbs – 110 lbs100 mg – 110 mg40 ml – 44 ml
110 lbs – 120 lbs110 mg – 120 mg44 ml – 48 ml
120 lbs – 130 lbs120 mg – 130 mg48 ml – 52 ml
130 lbs – 140 lbs130 mg – 140 mg52 ml – 56 ml
140 lbs – 150 lbs140 mg – 150 mg56 ml – 60 ml

How Long Does It Take for Benadryl to work?

The Bendryl effect on dogs remains for 24 hours .However, for dogs with liver or kidney disease,the effects can last longer

What are the Side Effects of Benadryl in Dogs ?

What are Benadryl Side Effects in Dogs ?

There are some common side effects of Benadryl like dry mouth, sleepiness, and urine retention. But ,in some dogs , some very uncommon side effects, such as diarrhea, vomiting, rapid breathing, increased heart rate, and appetize changes may occur . If these symptoms become severe, you should call your vet.Therefore , dogs with the following conditions should not be given Benadryl dosage without first consulting with the vet:

  1. Allergic lung disease
  2. Bladder neck obstruction
  3. Cardiac conditions (such as cardiovascular disease, heart failure)
  4. Pregnant or nursing
  5. Glaucoma
  6. High blood pressure
  7. Hypertension
  8. Hyperthyroidism
  9. Low blood pressure

Benadryl killed my dog !

That Benadryl as an easy fix for various problems is a very commonly accepted view. But a slight mistake in overdose of Benadryl can be fatal for dogs. Benadryl only hides the problem temporarily. And it’s not safe. Read the full article here.

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