H1 antihistamine that blocks vestibular input to the vomiting center, preventing motion sickness. The theophylline component provides mild CNS stimulation offsetting sedation.
At a glance
Class
Antihistamine / Antiemetic (Motion Sickness)
Storage
Store at room temperature below 25°C
Dosing
Used for motion sickness
Frequency
q8h or as needed
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Safety
Antiemetic efficacySedation level
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →Interactions
No documented interactions.
FAQs
Frequently asked questions
›What is Dimenhydrinate?
Dimenhydrinate is a antihistamine / antiemetic (motion sickness) used in pets. H1 antihistamine that blocks vestibular input to the vomiting center, preventing motion sickness. The theophylline component provides mild CNS stimulation offsetting sedation.
›What is Dimenhydrinate used for in pets?
Dimenhydrinate is used in veterinary medicine for: Used for motion sickness.
›What is the Dimenhydrinate dose for dogs?
For dogs, Dimenhydrinate is typically dosed as follows — Used for motion sickness: 4–8 mg/kg PO q8h or as needed. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›What is the Dimenhydrinate dose for cats?
For cats, Dimenhydrinate is typically dosed as follows — Used for motion sickness: undefined undefined PO q8h. Always consult your veterinarian for a dose tailored to your pet's weight, age, and condition.
›Does Dimenhydrinate need a prescription?
Dimenhydrinate is available over the counter. Even so, you should consult your veterinarian before giving any medication to your pet.
Educational reference only
This information is provided for educational purposes and is not a substitute for professional veterinary advice, diagnosis, or treatment. Always consult a qualified veterinarian before administering any medication to your pet.
Find a vet near you →References
References
The PetCare.AI drug reference is built from 13 authoritative sources cited across 580 drug monographs.
Textbooks & handbooks — 5
- Plumb's Veterinary Drug Handbook
- Withrow & MacEwen's Small Animal Clinical Oncology
- Merck Veterinary Manual
- NRC Nutrient Requirements of Dogs and Cats
- Veterinary Pharmacology and Therapeutics (Riviere & Papich)
Clinical guidelines & consensus — 4
- ASPCA Animal Poison Control Center Guidelines
- AAHA Diabetes Management Guidelines
- ASPCA Poison Control Guidelines
- RECOVER CPR Guidelines
Journals & peer-reviewed studies — 2
- EPIC Study (J Vet Intern Med 2016)
- JVIM FAT CAT Study
Regulatory & approvals — 1
- CDSCO Veterinary Drug Approval Registry (1969–2026)
Databases — 1
- Washington State University VCPL MDR1 Database