Chlorpheniramine for Dogs

Pet Medications

Chlorpheniramine for dogs is a popular medication used mostly to reduce itching and to relax or sedate dogs.  The medication is an antihistamine, meaning it blocks allergy symptoms.

Dosedose of chlorpheniramine for dogs

The dose is going to vary based on the size of the dog, but generally range from 2mg to 8mg every 12 hours.  Check with your veterinarian or a pharmacist with a good animal reference like Plumb’s Veterinary Drug Handbook: Pocket

Side effects

adverse effects seen in dogs are pretty much the same as you would see in humans: drowsiness, sleepiness, vomiting, loss of appetite, diarrhea, dry mouth and difficulty urinating.


One must be extremely careful when dosing, as overdose can cause death.  Other overdose symptoms could include seizures, coma and difficulty breathing.

Dosage by weight

The dose can vary from 0.2mg to 0.8mg per kilogram two to three times a day.  I will give and example of 0.4mg/kg for a 22 pounds dog.

Convert pounds to kilograms

Simply divide the number of pounds by 2.2 to determine kilograms.

22pounds/2.2 equals 10 kil0grams

10 kilograms times 0.4mg equals a dose of 4 milligrams every 8 to 12 hours

More information

Use extreme caution and contact an expert for correct dosing.  Be careful in choosing a single ingredient chlorpheniramine product for your dog.  Some products may have other ingredients that may be harmful to your pet.

Save Up to 80% Off Your Meds…
…And Earn Rewards While You Save!

Comment Below! Because we’d like to hear your experience or further questions


The pharmaceutical information on this site is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes. This information is not intended to be patient education and should not be used as a substitute for professional diagnosis and treatment.
0 comments… add one

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

google-site-verification: google3c3aac6f75b1d99a.html