The bloodsucking northern fowl mite, or red mite, is the most economically important external parasite of US poultry. In July 2025, the US Food and Drug Administration approved Exzolt™ [egg-ZOLT], or fluralaner [FLEUR-ah-lah-ner] oral solution, for the treatment and control of northern fowl mites in laying hens and replacement chickens. It’s the first FDA-approved product for this problem as well as the first oral parasiticide that targets northern fowl mites in poultry.

Exzolt™ is only available by prescription from a licensed veterinarian. It’s administered in drinking water as 2 single doses, each a week apart. The product is safe and effective in hens, and when used as directed on the label, eggs and meat from treated birds are considered safe to eat.