Chlorpheniramine maleate is frequently included in antihistamine trials for allergic skin disease. It is not one of the more effective antihistamines in dogs but is one of the most reliably effective antihistamines in the cat (in one study 73% of itchy cats responded). Its availability and inexpensiveness make it worth trying in many cases.
Compare Apoquel to Atopica For Dogs to Chlorpheniramine 4 Mg Tabs
Chlorpheniramine should only be given to dogs to which it has been prescribed for by a veterinarian. The duration of treatment will depend on the reason for, and the patient’s response to treatment. If you miss a dose, make sure to give it as soon as you remember. But if it’s almost time for the next dose, just skip the one you have missed and go back to the regular schedule. Avoid giving 2 doses at once for this may have negative consequences on your pet’s health and wellbeing.
Chlorpheniramine dosage for dogs - Pharmacist Tips
Even when administered as recommended by the veterinarian, side effects have been observed in association with chlorpheniramine medication. Like most antihistamines, chlorpheniramine for dogs is likely to cause any of the following side effects:
Chlorpheniramine Antihistamine For Dogs and Cats