Can i give a dog benadryl?

If your dog is suffering from allergies, you may wonder if you can give them over-the-counter medication like Benadryl. Well, the short answer is yes, but there are some things to consider before you start dosing Fido.

What Is Benadryl?

First things first, let’s talk about what Benadryl actually is. The active ingredient in this common allergy medication is diphenhydramine hydrochloride. It works by blocking histamine receptors in the body that cause allergic reactions such as itching and inflammation.

In humans, diphenhydramine can create drowsiness – which makes it great for bedtime use – but as we’ll discuss shortly, it has different effects on dogs.

Why Would You Give A Dog Benadryl?

Dogs experience many of the same allergic symptoms that humans do: red and itchy skin, sneezing, watery eyes etc… If their reaction is mild enough (like a symptomless rash or mild food loathing), home remedies will typically suffice to relieve their discomfort quickly.

However, persistent allergies have much more drastic implications: your poor pooch could be driven into fits of scratching until they bleed; hair loss; bruising & swelling around the face due to excessive pawing; secondary infections from bacteria entering exposed cuts …yeah dealing with an allergic flare up probably won’t be so fun!

Benadryll might help however – albeit typically used more often when all else fails – having administered doses equalized according to size-based standard medical recommendations though.

Dosage Of Diphenhydramine For Dogs

As far as dosage goes, knowing how much medicine your pet needs according to its weight is essential: too little would lingeringly ineffectual and too much may manifest difference side-effects like sleepy vibes putting off their alertness. Use the simple chart below as a guideline.

Dog Weight Benadryl Dosage
Under 25lbs 25mg every 8 hours
25-50 lbs 50 mg every 8 hours
Over 50lbs regular adult Benadryl dose (typically, around <=75mg twice daily)

Note that rather than spooning human medication into your dog’s mouth, better options may be availed by getting either specially manufactured medication requiring veterinary approval or liquids formulated and dosed specifically for canines.

Possible Side Effects

Benadryl is generally safe for dogs when given in the correct dosage based on animal weight. However, just like with humans, some side effects are theoretically possible – particularly once you exceed healthy doses. Some common adverse outcomes of giving a dog too much benadryll include:

  • Disorientation
  • Dry mouth / heightened thirst
  • Nausea & constipation/diarrhea
  • Hypersensitivity to stimuli (especially sound & color)

Furthermore, providing any medications to pregnant or nursing mothers before consulting their vet should not under ANY circumstances be condoned

If after administering benodrryl, you observe these (or other) negative reactions take immediate action: contact or visit a veterinarian IMMEDIATELY!

It’s Always Best To Consult With Your Veterinarian

As mentioned earlier, there are certain things you need to consider before giving your pet this over-the-counter medicine: factors around which your veterinary doctor could advise your knowledgeably; helping determine whether it is truly safe & suitable choice given individual specific details like breed size etc.

Always remember that treating an allergy isn’t always cut and dried i.e…. diagnosing triggers while also prescribing proper medicines heavily relies on differentiating one allergy from another. I recommend scheduling an appointment at your veterinarian’s office so they can figure things out.


So, can you give your dog Benadryl? Yes, but it truly depends on the needs of your furry buddy as well as the prescription/dosage provided by a licensed veterinarian professional. Don’t risk blindly dosing them at home even if they display similar symptoms to human ones.

Above all else, keep tabs on what is best for that furball in accordance with a vet’s advice – let their comfort take precedence over half informed assumptions or trying to be fancy with home remedies!

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