Ultimate Guide to Chlorpheniramine
Meet the Awesome Animal Antihistamine: Chlorpheniramine!
Chlorpheniramine is an FDA-approved but an “extra-label”
veterinary medication that is an effective antihistamine for dogs AND cats.
Chlorpheniramine is given every 8 to 12 hours to fight environmental, food,
drug, and contact (e.g., soaps and perfumes) allergies. Chlorpheniramine
guarantees your pet an improved quality of life.
How does Chlorpheniramine work?
As an antihistamine, Chlorpheniramine Maleate inhibits histamines. Histamines
cause a bodily effect to a pet 's allergen, symptoms such as bumps, loss
of hair, hives, inflammation, or a closed throat. The following
“other” ingredients found in the Chlorpheniramine primarily
function to manufacture the tablet that you see in the bottle.
The following are inactive ingredients. D&C Yellow #10 is an FDA-approved
coloring additive to the tablets, and lactose is used as a filler in
medicines. Make sure that your pet does not have a lactose allergy (i.e.,
Magnesium stearate is a fine, white powder that improves the consistency and
quality control of medical tablets. Pregelatinized Starch is used in
modern-day medications to enhance the product 's overall safety when in
storage. Microcrystalline Cellulose creates tablets that are hard when
purchased and then dissolve quickly once ingested.
How is Chlorpheniramine administered to your pet?
Chlorpheniramine is administered orally every 8 to 12 hours (i.e., two to
three times a day). Though Chlorpheniramine is an “extra-label”
drug and can be purchased over the counter, your veterinarian should be aware
of its use by your pet and prescribe the dosage. The usual dosage for dogs is
2 to 8 mg and the usual dosage for cats is 1 to 2 mg. Chlorpheniramine can be
taken with/out food.
The bottles come in 100 tablets or 1000 tablets, and each tablet is 4 mg.
What are the precautions of which you should be aware?
Animals with glaucoma, lung disease, heart disease, high blood pressure, and
prostate gland enlargement should not use chlorpheniramine. Chlorpheniramine
may interact negatively with other medications, such as epinephrine, amitraz,
selegiline, tranquilizers, heparin, and barbiturates.
What are Chlorpheniramine side effects of which you should be aware?
Be wary of the use of Chlorpheniramine if the dog is sensitive to
chlorpheniramine or other antihistamines. Also, make sure that your dog is not
lactose intolerant, because the product contains the ingredient lactose. Let
your veterinarian know before combining with other medications or supplements.
Chlorpheniramine 'smost common adverse reactions reported are vomiting,
drowsiness, dry mouth, urinary retention, decreased appetite, and diarrhea. If
you observe seizure, drowsiness, respiratory depression, or coma, these are
signs of an overdose! Call your veterinarian or emergency veterinary clinic
Frequently Asked Questions
What is Chlorpheniramine used for?
This medication is used to treat allergic symptoms and reactions in dogs
and cats. It can also be used as a mild sedative, which is another form of
What do the Chlorpheniramine reviews say?
Chlorpheniramine reviews rate 4.5+ out of 5 stars. Most reviewers say that
Chlorpheniramine is the most effective pet antihistamine that they trust
for their furry pets. Most customers observe that their pets have gone
“back to normal” (e.g., happy, playful, and full of energy)
and have an improved quality of life.
What is the Chlorpheniramine dosage?
Dogs take 2 to 8 mg every 8 to 12 hours. Cats take 1 to 2 mg every 8 to 12
What are the other names for Chlorpheniramine?
Other names for Chlorpheniramine, or those who contain the active
ingredient Chlorpheniramine Maleate, are Chlor-Trimeton, Piriton,
Aller-Chlor, Chlor-Tabs, Chlorphen, Chlo-Amine, Ed-ChlorPed, Allergy-Time,
ED Chlorped Jr, ChlorHist, Pharbechlor, Wal-Finite, etc.
The most important thing that you should know about Chlorpheniramine is its
power to fight pet histamines, and watch them go back to their normal, happy
DISCLAIMER: FDA law restricts Chlorpheniramine only on the supervision of a
licensed veterinarian for the best pet health care advice. Ask your
veterinarian or consult with one of our pet care specialists at
1-800-844-1427. This informative article is not meant to substitute for the
diagnosis, treatment, and professional advice from your veterinarian or other
qualified professionals regarding a medical condition. Ask your veterinarian
about a specific dosage and if this “extra-label”, over the
counter product is suitable for your specific pet.