Panacur will treat quite a few different parasites, but doesn’t treat coccidea. Usually the main med for that is ponazuril.
How is his weight? Here’s some info on coccidea from medirabbit. I don’t want to alarm you but it is a serious disease (especially in young bunnies) so just want to make sure that isn’t it before taking the “wait and see” approach!
“Intestinal coccidiosis
The intestinal form of coccidiosis mainly affects youngsters from the age of 6 weeks to 5 months and is attributed to stress, noise, transport or immunosuppression. It is mainly observed in young newly weaned rabbits, but is also found in older rabbits.
Symptoms are a rough coat, dullness, decreased appetite, dehydration, loss of weight and (profuse) diarrhea, 4 to 6 days post-infection. If the loss of weight reaches 20%, death follows within 24 hours. It is preceded by convulsion or paralysis. During necropsy, inflammation and edema are found in the ileum and the jejunum portions of the intestine. It is sometimes accompanied by bleedings and mucosal ulcerations.”
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The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.