Didn't prevent heartworm in cats: medicines most often reported

433 FDA reports in cats mention didn't prevent heartworm. These are the medicines named most often in those reports.

Selamectin (Revolution)
285 1.3% of its reports
Sarolaner + Selamectin (Revolution Plus)
83 1.0% of its reports
Ivermectin (Heartgard)
45 4.7% of its reports
Imidacloprid + Moxidectin (Advantage Multi)
24 0.3% of its reports