ProMeris for cats is the only product available from a veterinarian that contains the active ingredient metaflumizone, a new compound proven to control fleas. Metaflumizone has never before been used to control fleas and research shows they are readily susceptible. Its new mode of action attacks fleas' nervous system by blocking voltage dependent sodium channels, which results in paralysis and death of the flea.
Proven Flea Control
How It Works
New Easy-to-Use Applicator
Packaging Information
Proven Flea Control
While monthly application is recommended for optimal flea control, research results demonstrate a single dose of ProMeris for cats effectively kills fleas and protects against re-infestation for up to seven weeks, and may be used as part of a treatment strategy for flea allergy dermatitis.
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How Metaflumizone Works

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New Easy-to-Use Applicator
The ProMeris patent-protected applicator features:
- Clear plastic - makes it easy to confirm entire dose has been applied
- Long tab - easy to grasp and hold out of the way while applying dose
- Nozzle design - helps prevent the dose from spilling out, even when inverted, until the pet owner is ready to apply the product and squeezes the tube; helps eliminate "splash back"; reduces the risk of skin abrasions during application
- Label information - includes species, size and weight range on the applicator to ensure the cat gets the correct dose


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Packaging Information
ProMeris for cats is available in two sizes to accurately dose cats and kittens* 8 weeks and older (see table below). Each size is available in three- and six-dose packages.
| Package Size |
Cat Size |
| Small |
Under 9 lbs.* |
| Large |
9 lbs. and Over |
*Kittens 8 weeks to 6 months should be treated with the Small size.
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