Is Vetadryl the same as Benadryl?

Vetadryl is a prescription medication that can be used to treat mild allergies in dogs. The active ingredient in Vetadryl is diphenhydramine, which is also the active ingredient in Benadryl.

Vetadryl for Dogs

What is Vetadryl used for in dogs?

Vetadryl works by blocking histamines, which are released when an animal comes in contact with an allergen. This can help relieve issues such as sneezing, itching, and swelling.

How much Vetadryl can I give my dog?

The recommended dose of Vetadryl for dogs is 1 mg per pound of body weight.

Vetadryl 10 mg
Dog’s weight (lbs) Vetadryl dosage (tablet)
5 to 10 lbs 1 tablet of 10 mg
10 to 15 lbs 1 or 2 tablets of 10 mg
15 to 20 lbs 2 tablets of 10 mg
20 to 25 lbs 2 or 3 tablets of 10 mg
25 to 30 lbs 3 tablets of 10 mg


Vetadryl 30 mg
Dog’s weight Vetadryl dosage (tablet)
30 to 50 lbs 1 tablet of 30 mg
55 to 65 lbs 1 or 2 tablets of 30 mg
70 to 100 lbs 2 tablets of 30 mg
100 to 130 lbs 2 or 3 tablets of 30 mg

Dogs with an existing heart condition should not take Vetadryl because it can increase their heart rate and make them more anxious.

How often do I give my dog Vetadryl?

You should give your dog Vetadryl every 8 or 12 hours until his symptoms go away and he is back to normal again. If he still has symptoms after 48 hours, call your veterinarian for further instructions.

Is Vetadryl over the counter?

No, Vetadryl is not over the counter. It is a prescription medication and must be prescribed by your veterinarian.

What are the side effects of Vetadryl for dogs?

Common side effects include drowsiness, constipation, dry mouth, and urinary retention. These may occur at any time during treatment but should improve after you stop using Vetadryl. You should contact your veterinarian if your pet experiences these effects or if they worsen or last longer than expected.

Which antihistamine is best for dogs?

In dogs, the most commonly used antihistamines are Benadryl (diphenhydramine), Zyrtec (Cetirizine), and Claritin (Loratadine).

Diphenhydramine is a first-generation antihistamine that causes sedation in many dogs. It’s available as a chewable tablet or liquid, which some owners prefer because they’re easier to administer.

Zyrtec and Claritin are second-generation antihistamines that don’t cause sedation in dogs. They work well for treating itching caused by allergies and insect bites.

Conclusion of Vetadryl for dogs

Vetadryl is a medication used to treat mild allergies in dogs. It is not a cure for allergies, but rather a treatment that relieves the symptoms of allergies.

Cats that suffer from allergies may benefit from Vetadryl as well. However, they should only receive Vetadryl under the supervision of their veterinarian.

Vetadryl is usually given orally once daily during peak allergy season (spring and summer). It can also be given twice daily if necessary.

If you have any questions about Vetadryl or any other medicines that your pet might be taking, please contact your veterinarian for more information.

Top 3 Natural Antihistamines
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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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