Panacur Suspension 10 Side Effects. However, allergy to this medicine is a cause for concern as it can cause an adverse reaction that may manifest in the form of hives, facial swelling, and breathing problems. Cattle must not be slaughtered for human consumption within 8 days following treatment.

The side effects that may occur include infrequent vomiting or diarrhea, but this is rarely reported. The following is copied from a download i got from doctors foster and smith website. Although safe, certain side effects can appear.