Clemastine is a long-lasting over-the-counter antihistamine used to treat the symptoms of allergies in pets.
For: Cats and Dogs
Benefits:
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Long-lasting effects
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Over-the-counter medication. No prescription needed
How it works: Clemastine is a selective histamine H1 antagonist. It binds to the histamine H1 receptor, and blocks histamine, allowing for temporary relief of allergy symptoms.
Cautions: Side effects of Clemastine vary with cats and dogs. In dogs it’s most commonly sedation, hyperactivity, and dry mouth. In cats, diarrhea is most common. Use with caution when given with sedatives or tranquilizers.
More Information:
Brand Name Tavist (Novartis), Dayhist (Major)
Generic Name Clemastine fumarate
Manufacturer: Various
What is this medication used for: Clemastine is used for the symptomatic relief of allergy symptoms.
Availability: Clemastine is available as 1.34mg tablets as a non-prescription (OTC) product.
How this medicine should be used: Clemastine is not FDA-approved for use in animals; however, it is a commonly accepted practice for veterinarians to use this medication in dogs and cats. The usual dose in dogs is ½ or 1 tablet every 12 hours. The usual dose in cats is ½ tablet every 12 hours.
What are the side effects: The side effects of clemastine in dogs are sedation, paradoxical hyperactivity, and dryness of the mouth. In cats, diarrhea is most common.
What special precautions are there: This medication should not be used in animals allergic to it. Use with caution in animals with prostate or bladder conditions, severe cardiac failure, or glaucoma. Use with caution when given with sedatives or tranquilizers. Use with caution when given to pregnant or nursing animals.
In the event of overdose: Contact your veterinarian or veterinary emergency room. Symptoms of overdose may include dry mouth, blurred vision, rapid heart rate, urinary retention, fever, and possibly hypotension.
How should I store this medication: Store at controlled room temperature (59-86ºF). Keep this medication out of the reach of children and pets.
Directions:
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Clemastine 1.34mg tablets are an over-the-counter (OTC) product.
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Clemastine 1.34mg tablets are an antihistamine used to treat the symptoms of allergies.
Tip: Clemastine can interact with other medications. Check with your pharmacist or veterinarian before giving this medication to pets taking other medications.
Dosage:
Pet
Weight
Dosage
Dogs/Puppies:
All weights
1/2 – 1 tablet every 12 hours
Cats/Kittens:
All weights
1/2 tablet every 12 hours
Horses:
Storage: Should be stored at room temperature.
Clemastine
Active Ingredients
Amount
Clemastine fumarate, USP (equivalent to 1 mg clemastine)
This information sheet is for educational purposes only and is intended to be a supplement to, and not a substitute for, the expertise and professional judgment of your veterinarian. The information is NOT to be used for diagnosis or treatment of your pet. You should always consult your own veterinarian for specific advice concerning the treatment of your pet. The information is not intended to cover all possible uses, directions, precautions, warnings, allergic reactions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for your pet. It is not a substitute for a veterinary exam, and it does not replace the need for services provided by your veterinarian. Note: Any trademarks are the property of their respective companies.
