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Chlorpheniramine Compounded

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Chlorpheniramine 40 Mg/ml Transdermal 1 Ml
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Product Info
What is Chlorpheniramine Compounded?

Chlorpheniramine Compounded is an antihistamine meant to be used for the temporary relief of allergy symptoms in pets. Compounding is beneficial in instances where a specific dosage is unavailable or in different forms to make it easier to dose your pet.


Cats and Dogs

  • Begins to work within 1 hour
How it Works:

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


While 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.

How to Use
  • Chlorpheniramine Compounded is an antihistamine used to treat allergies.
  • Consult your veterinarian for the right dosage.

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.

What is compounded medication?
What is a Compounded Medication?

A compounded medication is the creation of a particular medication to fit the unique needs of a patient, including changing the form of the medication (e.g., from a solid pill to a liquid) for a variety reasons (e.g., to make it easier to take, to avoid a non-essential ingredient, to obtain the exact dose needed, adding favorite flavors).

If you are having difficulty giving your pet prescribed medication or need to find a discontinued medication, 1-800-PetMeds offers compounding services on select medications. We can prepare the following: (1) custom strength quantities of a medication (as capsules, liquid, chewable tablets, or transdermal (absorbed through the skin); (2) dosage forms to mask bitter or unpleasant taste (such as capsules or chewable tablets that can also be flavored); (3) dosage forms to make it easier to dose your pet such as a transdermal or liquid (that can also be flavored); and (4) discontinued products such as cisapride or DES.

Customer Reviews

Is the flavoring (chicken) strong enough to counteract the bitterness of this medication? Will my cat still foam at the mouth? What options exist (transdermal, chew, liquid, pill) for a 2mg dosage?

Asked by: Mr Bravery
Flavoring chlorpheniramine liquid should help to mask the bitter taste of the drug. We also offer chewable tablets and a transdermal gel. Consult your veterinarian for the appropriate dosage form for your pet.
Answered by: Lisa M
Date published: 2017-09-19

I have use benadryl and it causes horrible mouth foaming. Does this compounded liquid cause the same mouth foam reaction? The foaming scared my cat to death. It was funny but horrifying for her. She is very hard to pill, so looking for liquids

Asked by: Martini
My vet said the foaming was due to medications tasting very bitter. I wonder why a 1-800-petmeds Rep. hasn't answered this question on whether the compounded form would be flavored strong enough to counteract this? This concerns me as I'm researching options myself & I would be a new customer if this answer was definitively answered by one of them.
Answered by: Mr Bravery
Date published: 2017-09-19

Do you need a script from the vet to get the compounded Chlorpheniramine in transdermal form? Also, she gets 2mg of Chlorpheniramine per dose and I was wondering what that would translate to if I purchased the transdermal form?

Asked by: Lindsay89
Thank you for your question. Compounded Chlorpheniramine does require a prescription.
Answered by: Crystal PetMed Pro
Date published: 2017-09-05

what is the shelf life of this product

Asked by: Shel
Shelf life varies based on when the product was manufactured. The label should have the expiration date on it.
Answered by: Christine
Date published: 2016-10-21

I would like to use a liquid version of Chlorpheniramine for my cat as the tablet has been a pain to administer.  My vet would like my cat to have 4mg of the tablet form per day.  Would this liquid compounded version work and if so, at what ml/dose? 

Asked by: LisaG
Our liquid formulation comes in a concentration of 25 mg/mL. In order to give your cat 4 mg daily, you would need to give 0.16 mL per day.
Answered by: Christine
Date published: 2016-10-14

Does the eye dropper for the chlorpheniramine have a 0.08mL line to give my cat the equivalent of 2mg?

Also, I am intersted in more information about the transdermal form of chlorpheniramine for cats.
Asked by: Sharon
No, that dose would be hard to measure.
Answered by: Kelly P
Date published: 2015-04-09

dose & ingredients

My vet wanted to know what other ingredients are in the Chlorpheniramine liquid. It would be used for a cat. What dose would equal 2mg Chlorpheniramine
Asked by: MaCody
Chlorpheniramine is the active ingredient in the liquid dosage form we carry. A 2mg dose would be dependent on the strength of the medication. We carry a 25mg/ml liquid strength, thus 2mg would equal 0.08ml.
Answered by: S Duesler PharmD MBA
Date published: 2014-09-29

What flavor does the liquid compound come in? I need it for a cat.

Asked by: Dena
Flavors that are available for a cat include :FISH CHOWDER, SALMON, TUNA, SHRIMP SARDINE AND CHICKEN
Answered by: Linda petmeds pharmacist
Date published: 2017-07-16
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