Chlorpheniramine Tablets

Chlorpheniramine Tablets

Chlorpheniramine is an antihistamine used to relieve or prevent the symptoms of allergies. 

Dogs and Cats

Chlorpheniramine

Chlor-Trimetron®

Antihistamine, First Generation

Current Manufacturer: Major

Chlorpheniramine 4 mg Tablets 100 ct: 8 mm, yellow, round tablet, scored in half, imprinted with 44;194. (NDC 00904-0012-59)

Chlorpheniramine maleate

Corn starch, D&C Yellow No 10 aluminum lake, anhydrous lactose, magnesium stearate, microcrystalline cellulose.

Chlorpheniramine should be given orally as directed by your veterinarian.

Give the dose as soon as possible. If it is almost time for the next dose, skip the missed dose, and continue with the regular schedule. Do not give 2 doses at once.

Side effects may include stomach upset, such as diarrhea, vomiting and lack of appetite. Your pet may appear drowsy. This effect may decrease with time. Your pet may experience dry mouth and retain its urine for longer than usual. Notify your veterinarian if these effects are troublesome and continue.

Other side effects may occur. If you notice anything unusual, contact your veterinarian.

The following drugs can potentially interact with chlorpheniramine maleate: phenytoin, heparin, warfarin and other CNS depressants. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together.

Make sure to tell your veterinarian what other medication you are giving to your pet. Quite often your veterinarian may prescribe two different medications, and a drug interaction may be anticipated. In this case, your veterinarian may vary the dose and/or monitor your pet more closely. 

This medication does not have an FDA approved indication for use in animals, but it is a common and acceptable practice for veterinarians to prescribe this human medication for use in animals.

Use caution in animals with glaucoma, enlarged prostate, severe cardiac disease, high blood pressure, hyperthyroidism, bladder obstruction, obstruction of the pylorus, pregnant and lactating animals.

Allergic reactions to medications may occur. Be sure to inform VetSource and your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; vomiting; widespread hives and itching.

If you are concerned that your pet has experienced an adverse reaction to this medication, please contact Vetsource customer service at 877-738-4443.

Store at 77°F in controlled room temperature, excursions permitted between 59° to 86°F. Keep this medicine out of reach of children. Store in a childproof container. Store this medicine in a cool, dry place at room temperature. Store away from heat and direct sunlight. Do not store this medicine in the bathroom, near the kitchen sink or in damp places. The medicine may break down if exposed to heat or moisture.