What to Know About Antihistamines for Cats

1. What are antihistamines?

Antihistamines are a class of medications used to treat allergies by blocking the effects of histamine, a chemical released by the body in response to an allergen. Antihistamines can be used to treat a variety of allergy symptoms, including sneezing, runny nose, itchy eyes, and skin rashes.

2. Are antihistamines safe for cats?

Yes, antihistamines are generally safe for cats when used according to the directions of a veterinarian. However, some antihistamines can cause side effects in cats, such as drowsiness, diarrhea, and vomiting.

3. What are the different types of antihistamines?

There are two main types of antihistamines: first-generation and second-generation. First-generation antihistamines, such as Benadryl (diphenhydramine) and Chlor-Trimeton (chlorpheniramine), are more likely to cause sedation and other side effects than second-generation antihistamines. Second-generation antihistamines, such as Claritin (loratadine) and Zyrtec (cetirizine), are less likely to cause sedation and other side effects, and they may be more effective in treating some types of allergies.

4. How are antihistamines given to cats?

Antihistamines can be given to cats orally in the form of tablets, capsules, or liquid. They can also be given topically in the form of eye drops or sprays.

5. What is the dosage of antihistamines for cats?

The dosage of antihistamines for cats will vary depending on the type of antihistamine and the weight of the cat. It is important to follow the directions of your veterinarian when giving your cat an antihistamine.

6. What are the side effects of antihistamines in cats?

The most common side effects of antihistamines in cats include drowsiness, diarrhea, and vomiting. Other side effects may include dry mouth, constipation, and urinary retention. If your cat experiences any side effects from an antihistamine, talk to your veterinarian.

7. When should I give my cat an antihistamine?

Antihistamines can be given to cats to treat a variety of allergy symptoms, including sneezing, runny nose, itchy eyes, and skin rashes. If your cat is experiencing any of these symptoms, talk to your veterinarian about whether an antihistamine is right for your cat.