can dogs take promethazine

Can Dogs Take Promethazine – PetDogsLife

Can dogs take Promethazine? Yes, Promethazine (Phenergan) is a medication used in veterinary medicine to prevent motion sickness in your dog.

If your dog feels restless or nauseous while travelling, he may benefit from the use of promethazine before beginning any type of travel. 

As with most medications, there are some precautions you need to understand when giving them to your dog. It’s important that you do not exceed the recommended doses, since overdose of this drug may cause adverse effects.

Can Dogs Take Promethazine

If your dog starts feeling ill after taking the medication, contact your vet immediately. To know more about this topic keep reading.

Is Promethazine Safe For Dogs?

Promethazine is considered safe for dogs. You should tell your veterinarian if your dog has any underlying medical condition before administering promethazine. 

Only overdose or underdose amounts could have serious side effects so it’s best to follow the recommendations and the average dose range given by veterinarians.

What Is The Average Promethazine Dose For Dogs?

The average dose of Promethazine for dogs is 1 mg of the medication for every 2 lb. Your veterinarian will determine how much to administer based on your pet’s weight.

Will Promethazine Make My Dog Sleepy?

Your dog may feel sleepy after receiving the medication. But if your dog suffers from insomnia, he might experience sleepiness because of the medication.

However, if you notice signs such as excessive drooling, muscle tremors, twitching, stumbling, weakness, or severe depression then it’s best to consult your veterinarian.

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How Long Does It Take To Work In Dogs?

Like all other medicines, promethazine stays active in your system after being ingested.  In case of nausea, vomiting, or diarrhea, it takes approximately 4 hours for your dog to clear up these symptoms completely.

Are There Any Side Effects Of Using Promethazine?

Some side effects may occur even though the dosage and frequency are appropriate. Some of those include:

  • Mild sedation
  • Muscle trembling
  • Stiffness or joint pain
  • Excessive salivation
  • Diarrhea

Side effects should resolve once they stop using the medication. Please call your vet if you notice unusual behavior, such as seizures or excessive bleeding.

Can I Use Promethazine With Other Medications?

When it comes to interactions with other medications, promethazine doesn’t react differently than others. That means, if you’re giving your dog other prescriptions at the same time, it will behave like normal.

Why Do Dogs Get Motion Sickness?

Vomiting, sweating, a rapid heart rate, and dry mouth all result from motion sickness. These are common symptoms that some animals get during long journeys. Sometimes, these symptoms can become extreme in times of crisis.

Motion sickness occurs due to a lack of balance between both the inner ear and the eyes. When one or both senses aren’t working properly, your brain receives incorrect signals to adjust the body positions.

Can Dogs Take Promethazine When They Are Sick?

Yes! Promethazine is commonly prescribed when your dog feels nauseous or sick to prevent them from throwing up. However, there’s no need to use it if you suspect that your dog has food poisoning. Call your veterinarian instead.

Can I Give Promethazine To My Puppy?

Yes, promethazine is available over the counter for puppies too. Although the recommended dose varies depending on the age and size of your puppy, you can start him on a small dose (1.25-1.50 mg) and increase the dosage later if needed.

Can Promethazine Be Used To Treat Nausea?

Yes. If you have a good response to promethazine then you’ll likely see relief within 30 minutes after taking it. This medicine is also effective against vomiting caused by illness or surgery.

Does Benadryl Help Dogs With Nausea?

No! Benadryl treats itching and allergic reactions. That means it won’t help relieve nausea either. Also, Benadryl isn’t meant for treating any type of gastrointestinal problems or vomiting.

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Is It Safe For Pregnant Women To Have Promethazine?

Promethazine shouldn’t cause any harm to the mother or her unborn baby. Moreover, most veterinarians recommend its use during pregnancy. So, don’t worry.


I hope that this article provides you with adequate information about can dogs take promethazine. You now know why it’s important to ask questions before making decisions about your pet’s health. Thank you for reading the article. 


Is it safe for puppies and kittens?

Yes – Promethazine is safe for pets of any age. It is usually given to pets who feel seasick which is often called motion sickness.

What is the difference between oral promethazine and injectable promethazine?

Promethazine is only available as a capsule or syrup form. Oral promethazine is more effective and should be preferred over injectable promethazine.

Does promethazine have any side effects?

No, promethazine is completely safe to use. However, it is not a prescription medicine but rather an over-the-counter drug.

How do we give our dogs promethazine without vomiting?

You can buy tablets from pharmacies and add water to dissolve the tablet under their tongue. If you do not see an effect within five minutes then repeat the process again.

Why should I administer promethazine to my dogs?

To reduce nausea and vomiting in ships and cars. It also helps calm down your pet when traveling by air.

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