It is a prescription veterinary medicine
In the United States, the official Revolution Plus label states that federal law restricts the product to use by or on the order of a licensed veterinarian. FDA explains that prescription animal drugs require veterinary oversight because they cannot be safely used without it. Rules differ by country, but buying around professional advice does not make the biological risks disappear.
Why the veterinarian needs the actual cat
The product combines selamectin and sarolaner and comes in weight-specific doses. The US label covers cats at least eight weeks old and weighing at least 2.8 lb (1.27 kg). The right parasite plan also depends on location, lifestyle, other animals, medical history and products already used.
The isoxazoline class has been associated with neurologic adverse reactions, and caution is advised in cats with a history of neurologic disorders. Safe use has not been evaluated in breeding, pregnant or lactating cats or kittens under eight weeks.
What to do instead
Ask a veterinarian which parasites need coverage, whether testing is appropriate and which exact product and dose fit your cat. Never split a tube by guesswork, use a dog product on a cat or combine preventives unless specifically instructed. If a treated cat develops tremors, loss of coordination, seizures or another concerning reaction, contact a veterinarian promptly.
Sources and further reading
- DailyMed: Official Revolution Plus prescription label
- FDA: Veterinarian-client-patient relationships and prescription animal drugs
Sources support the general information on this page. CatMind is an observation tool, not a veterinary diagnostic service.
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