Overview
Cetirizine is a second-generation antihistamine commonly used in veterinary medicine to alleviate allergy symptoms in pets, including dogs and cats. It works by blocking the action of histamine, a substance in the body that causes allergic symptoms.
How It Works
Cetirizine functions by selectively inhibiting peripheral H1 receptors. This action prevents histamine from binding to these receptors, reducing symptoms like itching, swelling, and redness.
Uses & Indications
Cetirizine is primarily used to treat allergic reactions in pets, including:
- Atopic dermatitis
- Allergic rhinitis
- Urticaria (hives)
Dosage Guidelines
Dogs
- Small Dogs: 5 mg once daily
- Medium Dogs: 10 mg once daily
- Large Dogs: 20 mg once daily
Cats
- Standard: 5 mg once daily
Administration
Cetirizine is administered orally, usually in tablet form. It can be given with or without food.
Frequency
Typically, cetirizine is given once daily, but the frequency may be adjusted based on the veterinarian's recommendation.
Duration
The duration of treatment depends on the condition being treated and the response to therapy.
Side Effects
Common
- Drowsiness
- Dry mouth
Rare
- Gastrointestinal upset
Severe
- Excessive drowsiness or agitation (consult a vet)
Precautions & Warnings
- Cetirizine should not be used in pets with a known hypersensitivity to it.
- Use with caution in pets with renal or hepatic impairment.
Drug Interactions
- Concurrent use with other central nervous system depressants may enhance sedative effects.
Storage
Store in a cool, dry place away from direct sunlight. Keep out of reach of children and pets.
FAQ
- Can Cetirizine be given to pregnant pets? Use with caution and only under veterinary supervision.
- Is a prescription required for Cetirizine? No, but veterinary guidance is recommended.
- Can Cetirizine be used long-term? Only under the guidance of a veterinarian.
- What should I do if I miss a dose? Administer as soon as you remember, but skip if it's close to the next dose.
- Can I give Cetirizine with food? Yes, it can be given with or without food.
Always consult your veterinarian before starting any new medication for your pet.