Chlorpheniramine: OTC Tablets for Dogs and Cats - VetRxDirect
Giving antihistamines to dogs and cats for allergies is somewhat controversial. The sad reality is that in the vast majority of veterinary patients they are not nearly as effective as they are in people. That said, they are worth a try, particularly if they are used in conjunction with other treatments or to prevent the onset of symptoms rather than to deal with them once they are in full swing. I often first try giving diphenhydramine to dogs (2-4 mg/kg every 8-12 hours) and chlorpheniramine to cats (2-4 mg per cat — NOT per kg — twice daily), but determining which type of antihistamine works best in an individual is a crap shoot. I’ll try three different ones before throwing up my hands and writing off the whole class of drugs for that patient.
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.
Chlorpheniramine has a very bitter taste. Cats have been reported torefuse taking it after the first few administrations. If you are usingchlorpheniramine in liquid form, you may consider switching to pillform, or alternating different types of antihistamine treatments. Ifusing chlorpheniramine in pill form, note that it too, has a bittertaste. Cat pill pockets can be purchased to remedy this situation. Pillpockets are a tasty and nutritious treat with a pocket speciallydesigned for hiding a pill.Before beginning treatment for feline allergies with chlorpheniramine, let your vet know about any other medications your cat is taking. Chlorpheniramine should not be used in combination with other medicines that have a tranquilizing effect. Doing so can dangerously slow down a cat's rate of breathing. Chlorpheniramine should also not be combined with other pain killers or caffeine when it is being used to treat cat allergies. Cats should not take chlorpheniramine if they are allergic to ingredients in similar antihistamines. A cat allergy may be treated with chlorpheniramine maleate. Chlorpheniramine is used to prevent allergies that cause contact or inhalant allergies. It's a low-cost, widely used antihistamine used to treat cat allergies, as there is a high success rate. Chlorpheniramine for cats is one of the most reliable and effective antihistamines in felines. It comes in the form of tablets, capsules and syrup. Chlorpheniramine (also known as Chlortrimeton) , is an over-the-counter antihistamine that can really help many cats with pollen or dust allergies. Use ¼ to ½ of a 4 mg tablet once or twice a day; if it's going to help, it should work within 24 hours. Rare side effects include sleepiness (how are you going to tell?) and very rarely, diarrhea, in which case stop using chlorpheniramine. Chlorpheniramine is not for cats who are acting sick.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.Chlorpheniramine is an antihistamine medication commonly prescribed to dogs and cats for treating allergic reactions like itching and inflammation. It can cause drowsiness, so it is used as a mild sedative and to reduce motion sickness. Additionally, chlorpheniramine is also sometimes used for feline asthma and in the treatment of mast cell tumors. Compounded oral suspension requires a prescription and is available in 2mg, 4mg, and 8mg strengths in 15mL, 30mL, and 60mL bottles. Flavors listed above.