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Clemastine Antihistamine


 
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  Product Info   How to use   Ingredients   Customer Reviews   Q & A  

What is Clemastine?

Clemastine is a long-lasting over-the-counter antihistamine used to treat the symptoms of allergies in pets.
For: Cats and Dogs

Benefits:
Long-lasting effects
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:

Clemastine 1.34mg tablets are an over-the-counter (OTC) product.
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) 1.34 mg
Inactive Ingredients (per tablet):
colloidal silicon dioxide, lactose monohydrate, providone, pregelatinized starch, starch, stearic acid.
Clemastine Antihistamine 3.9 5 9 9
Clemanstine This relatively newer antihistamine over the past several years has come under recent favor of use by many veterinarians in treating seasonal inhalent/contact allergies, which often causes excess itching of ears/skin and paw licking, as well as secondary bacterial and/or yeast infections, which are often frustrating and expensive to treat. As I mention under my product reviews for diphenhydramine and chlorphenirimine, it is always preferable to first try antihistamines in these allergic pets, rather than stronger drugs like cortisone which can sometimes have short and long term side effects in some pets. As discussed in detail under my other antihistamine product reviews, the overall effectiveness of antihistamines is 25% in my experience in alleviating symptoms, and sometimes one antihistamine will work in one pet and not another. That is why I will often do a 2 week trial with one antihistamine, before changing to a different one, if symptomatic relief is not adequate . As also discussed in these product reviews, antihistamines often work best when combined with other supportive measures like topical shampoo therapy with 1800petmeds oatmeal and aloe vera shampoo or hydrocortisone shampoo, along with fatty acid supplementation and supplementation with antioxidants like proanthozone from 1800petmeds. Several years ago I attended a veterinary seminar by a dermatologist from Cornell veterinary school, touting studies with clemastine showing higher efficacy than other antihistamines, especially when combined with fatty acid supplementation. However in my experience and opinion, I have not found clemastine to work more effectively than diphenhydramine or chlorphenirmine in general. Every pet is an individual, however, and so sometimes various antihistamines must be tried as mentioned here, to see which one is most effective in an given pet. My overall rating of this product is a 3.5. Its efficacy is a 3.5. Its ease of use a 5. 10/27/2008
Allergy relief My older lab had such bad allergies she was itching until she was bleeding. She was up all night which meant I was up all night. Then her dermatoligist put her on prednisone and clemenstine. What a mircle...a difference within 1 day. She is now off prednisone and 1/2 tab twice a day and her allergies are under controll!!!!!!! 09/03/2012
Finally something worked My minature poodle scatched so much that he kept me awake at night. I tried everything. Benedryl did not even phase him...Finally my vet recommended Clemastine Antihistamine and finally some relief. He still licks his paws but the constant scratching and itching has stopped. If Benedryl does not work, try Clemastine. 01/07/2011
clemastine antihistamine i really can't give a proper evalaution because my cat would not eat the pill so i don't know if it would have worked or not,. i'm gonna try the syurp. 12/11/2010
Somewhat effective This seemed to help Skipper;s itching and biting some but not sure of the long term use. It does make him sleepy, which stops the biting etc. 11/07/2010
28 Questions · 31 Answers

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8 months ago
by
Marley
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Answer: 
Thank you for your question Marley, there is no weight requirement for this product so you would want to following the dosing instructions:
Pet Weight Dosage
Dogs/Puppies: All weights 1/2 – 1 tablet every 12 hours
Cats/Kittens: All weights 1/2 tablet every 12 hours
8 months ago
by
Chris B PetMed Pro
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10 months ago
by
love my dog
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Answer: 
You may use clemastine long term for itching if the itching is caused by allergies; however, there are side effects associated with this drug such as drowsiness, dry mouth or hyperactivity. The dose for dogs of all weights is 1/2 to 1 whole tablet every 12 hours, I would start with 1/2 tablet first and increase dose if neccesary.
10 months ago
by
Janine M./Pharmacist
Pompano beach
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the only thing that seemed to really help for my dog was predisone but the vet will not let him be on it anymore so im trying to find something else in replace to predisone that will help my poor "buddy" that is non-prescription.
10 months ago
by
jmpoct03
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Answer: 
Prednisone is not usually prescribed long term so you may supplement the treatment with over the counter antihistamines such as the clemastine.
10 months ago
by
Janine M./Pharmacist
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1 answer

where do I buy it?

11 months ago
by
rach
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Answer: 
Thank you for your question Rach, you can order this product from 1800PetMeds by either calling us or placing your online.
11 months ago
by
Chris B PetMed Pro
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1 year, 1 month ago
by
Rosie
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Answer: 
Both medications can be used for your rat terrier but you will need to consult your veterinarian as prednisone is a prescription medication.
1 year, 1 month ago
by
Janine, Pharmacist 1800PetMeds
Pompano Beach, Florida
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Product Q&A

28 Questions | 31 Answers
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.
 
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