From: Efficacy of an imidacloprid/flumethrin collar against fleas, ticks, mites and lice on dogs
Study Day or Week | Activity and efficacy (%) | |||
---|---|---|---|---|
Day −1 or −2 | 100 fleas | |||
Day 0 | Collars fitted to dogs in treated groups | |||
Day 2 (therapeutic efficacy) | 99.8 | 100 | 100 | 100 |
Day 8 | 100 | 100 | – | – |
Week 4 | 100 | 100 | 99.8 | 100 |
Week 8 | 99.7 | 99.3 | 98.9 | 100 |
Week 12 | 99.3 | 100 | 98.9 | 100 |
Week 16 | 98.5 | 100 | 98.4 | 99.3 |
Week 20 | 99.7 | 100 | 97.9 | 99.7 |
Week 24 | 99.2 | 100 | 98.2 | 99.9 |
Week 28 | – | 100 | 96.4 | 99.4 |
Week 32 | – | 99.7 | 96.6 | 96.2 |
Week 35 | – | 99.7 | 94.3 | 96.3 |