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Chlorpheniramine 4 Mg Tabs

$10.04 $6.83 
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Chlorpheniramine 4 mg Tabs 100 ct
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Product Info
How to Use
Customer Reviews
Product Info

What is Chlorpheniramine?

Chlorpheniramine is an antihistamine in tablet form meant to be used for the temporary relief of allergy symptoms in pets. Chlorpheniramine Compounded is also available as a chewable tab, liquid, or transdermal.


Cats and Dogs


  • Begins to work within 1 hour

How does Chlorpheniramine work?

Chlorpheniramine works to remedy contact, inhaled, or drug-induced allergies in dogs and cats by blocking the effects of histamine in the body.


While in 4mg strength it's over-the-counter, there are possible negative interactions with other medications. Consult with your veterinarian. Side effects may include drowsiness, vomiting, diarrhea, lack of appetite, dry mouth, and urinary retention. Do not store in the bathroom, as it's sensitive to moisture.

Brand Name:

Chlor-Trimeton (Schering-Plough)

Generic Name:


What is the most important thing I should know about Chlorpheniramine?

Chlorpheniramine is an antihistamine used in the treatment of contact, inhaled or drug-induced allergies in dogs and cats. It is also used to treat miliary dermatitis in cats.

How Chlorpheniramine be given?

Chlorpheniramine is not FDA approved for use in veterinary medicine; however, it is a commonly accepted practice to use this medication in dogs and cats. The usual dose for dogs is 2-8mg every 8-12 hours. For cats the usual dose is 1-2mg every 8-12 hours. Do not open or crush the long-acting capsules.

What are the potential side effects of Chlorpheniramine?

Side effects may include drowsiness, vomiting, diarrhea, and lack of appetite. Dry mouth and urinary retention can also occur.

What should I avoid while giving Chlorpheniramine to my pet?

This medication should not be used in animals allergic to chlorpheniramine or similar antihistamines. Do not use in patients with glaucoma, prostate disease or urinary obstruction, stomach or intestinal obstruction, high blood pressure or hyperthyroidism.

What happens if I overdose my pet on Chlorpheniramine?

Contact your veterinarian or veterinary emergency room. Symptoms of overdose may include excitement or seizure, drowsiness, coma, respiratory depression and death.

What other drugs will affect Chlorpheniramine?

Use caution when given with phenothiazines such as acepromazine and other central nervous system (CNS) depressant medications. Chlorpheniramine should not be used with monoamine oxidase inhibitors (MAOIs) such as selegiline and Preventic tick collar. Use caution when given with metoclopramide. Do not use chlorpheniramine when it is in combination with other medications such as acetaminophen or caffeine such as found in various cold and sinus products. Do not use in pregnant or lactating animals. Always tell your veterinarian and pharmacist what other medications your pet is taking.

How to Use
  • Chlorpheniramine 4mg tablets are an over-the-counter (OTC) product.
  • Chlorpheniramine 4mg tablets are an antihistamine used to treat allergies.

Chlorpheniramine can interact with other medications. Check with your pharmacist or veterinarian before giving this medication to pets taking other medications.

All weights
1/2 - 2 tablets every 8-12 hours
All weights
1/4 - 1/2 tablet every 8-12 hours
Do not use!

Should be stored at room temperature.

Active Ingredient (per tablet)
Chlorpheniramine maleate
4 mg
Other Ingredients: (per tablet) D&C Yellow #10, lactose, magnesium stearate, microcrystalline cellulose, pregelatinized starch.
Customer Reviews
Chlorpheniramine 4 Mg Tabs is rated 4.0 out of 5 by 93.
Rated 4 out of 5 by from Yo!! have been using an expensive cream# My 6 yr cat, tiger cat, has had awful allergies for years. Like many here tried benefryl. Didn't help. A few things, helped, but now she's worse. Vet prescribed this in a cream. If your cat leaves you with no skin, could be worth it, but at 50.00. Now I'll come here. Trick with meds and cats: we are doing this for their good. Stay calm, don't talk in a sorry, baby voice. Pets, kids, elderly can use this against us. Lol lol they aren't dumb. Just be the boss, in it goes. Follow up with a mist favorite treat. Izzy highly recommends roast beef from the deli.
Date published: 2017-10-12
Rated 5 out of 5 by from Life Saver My poor cat Spike has suffered from terrible allergies all his life with angry red welts all over his abdomen and the fur constantly chewed off his stomach and legs. Prednisolone helped but aggravated his diabetes and Atopica and Banaphan didn't stop the awful rash. This product is economical and doesn't taste so bad he vomits it back up and best of all the rash is going away and the hair is coming back. Thank you.
Date published: 2017-07-11
Rated 5 out of 5 by from Chlorpheniramine 4 Mg Tabs We beginning the second week of putting ear drops in ears and head shaking is not as often . He still licks his self. The allergy tablets are beginning to work and not scratching as often,
Date published: 2017-05-08
Rated 5 out of 5 by from Allergy pills for cats Chlorpromazine When I got the pills I started them on the tablet and they worked instantly. I am so happy with this product. The price was really good. Thank you for the help.
Date published: 2016-11-15
Rated 5 out of 5 by from Great stuff I bought this acouple weeks ago and the results are great.My cat is not itching,and just seems so much better
Date published: 2016-10-17
Rated 1 out of 5 by from WARNING! DO NOT BUY! The vet recommended this for my cat because of his sneezing and some coughing and she thought he had allergies. I gave the dose the vet recommended to him every day for three weeks. I stopped when I noticed his excessive scratching, clumps of fur on the floor and his now lethargic behavior. Before this product ALL my cat had was sneezing and coughing and NOW he is lethargic with a skin condition. Now it’s back to the vet in the hopes we can fix his scratching problem.
Date published: 2016-02-13
Rated 5 out of 5 by from Really helped my cat! I have a Sphynx cat who has been extremely itchy since day one. I found that just half a pill a day does wonders for him! He is no longer all scratched up and miserable.
Date published: 2016-02-01
Rated 5 out of 5 by from Gabrielle is a rescue and came with allergies galore! Not to sound gross but snot would go everywhere when she sneezed which was way to often. She is an older cat with very persnickety tastes... she doesn't know she is taking this medication. I crush it up and put it in her wet food at night... 1/2 a pill. What a difference! Amazing! Thank you!
Date published: 2016-01-30
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Hi bindi is 11years old, weighs 2.7kg. We have move to another place and now bindi just itches and scratches all the time. We have always noticed this when she is around grass. I have iramine 4mg. Could you tell me how often I can give for size? Caz 

Asked by: Bindi
Thanks for your question. Bindi should receive 1/2 to 2 tablets every 8 to 12 hours for her allergies. It is recommended to start at the lower dose of 1/2 tablet every 12 hours to see how she tolerates the medication. If she tolerates the medication but is still itching and scratching the next day, you may increase her dose, up to 2 tablets every 8 hours at the maximum.
Answered by: Adriane
Date published: 2017-11-30

My shih tzu has dry skin and groomer suggested nova pheniram 4 mg twice daily. She is not on any other medicine. Has anyone used this for dry skin? She is currently scratching. How long should I use this? Thanks. 

Asked by: Bailey
Hi I have been using it on my sheet sue for about a month now and it really helps the allergies. She no longer scratches and her nose is no longer runny. It does make them a little sleepy though
Answered by: Lani 72
Date published: 2017-09-26

Can I give this product to my cat for her allergies and if so how much??

Asked by: Becky
Thank you for your question. The product can be used for cats. The recommended dose is 1/4-1/2 tablets every 8-12lbs no matter how many pounds your cat weighs. Do not open or crush the long-acting capsules.
Answered by: Crystal PetMed Pro
Date published: 2017-08-28

Why does the bottle have human dosage on it?

Asked by: Kim
This product is used for people as well as animals
Answered by: Becky
Date published: 2017-08-28

I have a 25 lb min  schnauzer who keeps licking his paws. I gave him one 4 mg pill. Is that too much and if so what should I do?

Asked by: Rudy1
This product is safe for dogs and puppies of all weights 1/2 - 2 tablets every 8-12 hours.
Answered by: Cherley Petmeds Pro
Date published: 2017-07-26

Can I get one bottle of 1000 tablets of Chlorpheniramine? Or is price same as 10 bottles of 100?

Asked by: IslandLabs3
Thank you for your question. Unfortunately the Chlorpheniramine is sold only as a 100ct bottle. You would need to order a quantity of 10 bottles to get 1000 tablets total.
Answered by: Crystal PetMed Pro
Date published: 2017-05-22

Will chlortab help with nasal congestion? My 46 lb pup has year round allergies, Apoquel, Benadryl, and Temaril P doesn't help with nasal congestion.

Asked by: Missy
According to the labeling of this product, Do not use chlorpheniramine when it is in combination with other medications such as acetaminophen or caffeine such as found in various cold and sinus products. We advise to please speak to your veterinarian to make sure this would be okay for your furry pet.
Answered by: Amy Petmed Pro
Date published: 2017-02-13

I have been giving my cat 5mg of Loratadine for his allergies and they have completely cleared his sores he was developing. My question is, would  Chlorpheniramine be comparable and or safer to give my cat?

Asked by: OzziesMom
Unfortunately since Customer Service Representatives are not a licensed medical professional we are not able to answer your question. We would have to advise you to consult your veterinarian.
Answered by: Amy Petmed Pro
Date published: 2017-04-03
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