How Much Benadryl Can I Give My Dog Is it Safe

Can I Give My Dog Benadryl?

Lots of dog owners wonder if Benadryl is safe for their pets. Benadryl can help dogs with itching, allergies, anxiety, and more. But you need to be careful with the dose. Too much can be dangerous.

This guide explains everything you need to know about using Benadryl for dogs.

Is Benadryl Safe for Dogs?

Benadryl contains diphenhydramine. This ingredient blocks histamines, which cause allergy symptoms. For most dogs, Benadryl works well and has few risks when used properly.

It’s always best to ask your vet first though, especially if your dog is on other meds or has health problems.

Types of Benadryl for Dogs

Benadryl comes as tablets, capsules, and liquid. Tablets and capsules are measured in milligrams (mg). Liquid measures in milliliters (mL).

Tablets work well for large dogs. Liquid is best for small dogs since it’s easier to give them an exact dose.

How Much Can I Give My Dog?

The basic dose is 1 mg per 1 pound of your dog’s weight. But every dog is different. Ask your vet for the right dose for your pup.

Giving too much Benadryl can make your dog very sick. Be extra careful with the dose, and always measure it carefully.

How Much Benadryl is Recommended for Dogs?

Here’s a general guide:

Dog Weight (lbs)Liquid Dosage (mL)*Tablet Dosage (mg)Total Daily Dosage (mg)
52 mL5 mg10 mg
104 mL10 mg20 mg
156 mL15 mg30 mg
208 mL20 mg40 mg
2510 mL25 mg50 mg
3012 mL30 mg60 mg
3514 mL35 mg70 mg
4016 mL40 mg80 mg
4518 mL45 mg90 mg
5020 mL50 mg100 mg
5522 mL55 mg110 mg
6024 mL60 mg120 mg
6526 mL65 mg130 mg
7028 mL70 mg140 mg
7530 mL75 mg150 mg

And so on based on your dog’s size. Break tablets into small pieces as needed.

Using Benadryl for Dog Allergies

Benadryl for Dog Allergies

Benadryl can give dogs relief from itchy skin, runny eyes, sneezing, and other allergy symptoms. It works fast to make dogs feel better.

It’s good for seasonal allergies or reactions to things like dust and pollen. But it’s also important to avoid allergy triggers when possible too.

Possible Side Effects

Most of the time, Benadryl is very safe for dogs. But watch for these side effects:

  • Sleepiness
  • Dry mouth
  • Upset stomach
  • Trouble peeing
  • Fast heartbeat

If you see serious reactions like seizures or trouble breathing, call your vet immediately!

Preventing Overdose

Giving more Benadryl than recommended can poison your dog. Signs of overdose include:

  • Dilated pupils
  • Agitation
  • Rapid
  • heartbeat
  • Seizures
  • Not peeing

An overdose is an emergency! Stay within dosage guidelines and call your vet with any concerns.

The Bottom Line

When used properly, Benadryl can safely relieve allergy symptoms, itchiness, anxiety, and more in dogs. But measure doses very carefully based on your dog’s exact weight.

Check with your vet first, and monitor your dog closely when giving Benadryl. This helps keep your pup happy and healthy!

Frequently Asked Questions

How long does Benadryl last in dogs?

Benadryl effects typically last 6-8 hours in dogs. (Worth, 2016)

How long does it take for Benadryl to start working in dogs?

Benadryl usually starts working within 30 minutes to 1 hour. (Loew, 1946)

Can dogs have allergic reactions to Benadryl?

Yes, some dogs can have allergic reactions to Benadryl, including hives, swelling, and breathing issues. Immediately contact your vet if this occurs. (Cortinovis, 2015)

Can I give my small dog liquid Benadryl?

Yes, liquid Benadryl is recommended for small dogs under 10 lbs since it allows easier dosing based on weight. Always verify correct dose with your veterinarian first.

Can Benadryl harm my senior dog?

Benadryl is usually safe for older dogs but start with a lower dose. Consult your vet since Benadryl can interact with medications commonly used in senior dogs.

Is it safe to combine Benadryl and other allergy meds for my dog?

Do not combine Benadryl with other antihistamines or decongestants without clear guidance from your veterinarian, as this can cause dangerous interactions.

Can I give my pregnant dog Benadryl?

You should avoid giving Benadryl to pregnant dogs unless directly advised by a vet, as effects on unborn puppies are not well studied.

Is liquid or pill Benadryl better for dogs?

For small dogs, liquid Benadryl allows the most accurate low-dose administration. Pills or tablets work well for larger dogs and may be easier to give.

Should I give my dog Benadryl with food?

Yes, giving Benadryl to your dog with a small meal can help prevent potential stomach upset or nausea in sensitive dogs.

How often can I safely give my dog Benadryl?

Veterinarians typically recommend only using Benadryl for short-term periods of a few days to a week maximum, unless advised otherwise. Long-term use can have risks.

Can Benadryl harm my puppy?

Benadryl is not recommended for very young puppies without veterinary approval. Consult your vet for dosage guidelines based on your puppy’s age and weight.

When should I stop giving my dog Benadryl?

Stop administering Benadryl to your dog if they exhibit any negative reactions, and contact your vet right away.

What human medications can dogs take besides Benadryl?

Never give your dog any human medications without first consulting your veterinarian. Even OTC drugs can be dangerous for dogs.

Can I give my dog the same Benadryl I take?

You can use the same human diphenhydramine tablets or liquid for your dog if they don’t contain additional ingredients. But dosing must be adjusted appropriately for your dog’s size.

Does Benadryl have side effects in older dogs?

Yes, older dogs may experience increased sedation, confusion, urinary retention, and other Benadryl side effects. Use lower initial doses and monitor your senior dog closely.

Sources and References

Worth, A.C., Wismer, T.A. and Dorman, D.C., 2016. Diphenhydramine exposure in dogs: 621 cases (2008–2013). Journal of the American Veterinary Medical Association, 249(1), pp.77-82.

Loew, E.R., MacMILLAN, R.O.B.E.R.T. and Kaiser, M.E., 1946. The anti-histamine properties of Benadryl, β-dimethylaminoethyl benzhydryl ether hydrochloride. Journal of Pharmacology and Experimental Therapeutics, 86(3), pp.229-238.

Cortinovis, C., Pizzo, F. and Caloni, F., 2015. Poisoning of dogs and cats by drugs intended for human use. The Veterinary Journal, 203(1), pp.52-58.