Side Effects of Revolution in Kittens

Revolution is a topical treatment for cats and kittens that helps prevent fleas, ear mites, heartworms, roundworms, and hookworms. Although side effects are uncommon, as with any medication, Revolution can have side effects in certain animals that are sensitive to its active ingredients. Knowing the possible side effects of Revolution will help you decide if your kitten needs medical attention for a reaction.

  1. Hair Loss

    • Revolution is applied topically to the back of your kitten's neck. Once the medication is applied, it is absorbed through his skin and into his bloodstream. Some animals have sensitivity at the application site. You may notice your kitten losing hair around the area. According to Pfizer Animal Health, your kitten may also develop skin irritation as well. His skin may become red and inflamed, or it may begin to dry and flake, similar to dandruff. His skin may become itchy, and you may notice him scratching at it. In extreme cases, hives or welts may occur.

    Drooling

    • Generally, your vet will recommend applying Revolution at the base of your kitten's neck where she can't reach it. However, if she manages to lick the application site and ingest the medication, she may start to drool. Drooling is usually not serious and lasts only while the medication is inside her mouth. If drooling continues or becomes worse, you should contact your vet.

    Digestive Problems

    • It is not uncommon for an animal with sensitivity to Revolution to develop one of a number of eating or digestive problems. Some animals may suffer a lack of appetite. You may notice that your kitten refuses to eat or eats very little. Kittens can also develop vomiting or diarrhea. Sometimes diarrhea will have blood in it. If your kitten develops any digestive or eating disorders, contact your vet immediately. According to the Pet Education website, diarrhea can lead to dehydration, which could be a serious problem for your kitten.

    Death

    • Revolution is intended for kittens eight weeks of age or older. If you administer the medication to a kitten less than eight weeks old, you run the risk of more severe side effects. According to Pfizer Animal Health, although death is a rare side effect of Revolution, the immature bodies of very young kittens simply can't process the medication properly, and they will incur more side effects than older animals.