Table 1 Geometric mean and percent control of on-animal flea counts in naturally infested homes when dogs and cats were treated with indoxacarb or fipronil (s)-methoprene based topical spot-on formulations

32/3

Geomean⁴

51.0^a

1.1^a

0.6^a

1.3^a

2.6^a

0.3^a

0.5^a

% control⁵

97.8

98.8

97.4

95.0

99.4

99.1

% (#) pets with no fleas

0.0

48.6

71.4

40.0

20.0

71.4

77.1

(0/35)

(17/35)

(25/35)

(14/35)

(7/35)

(25/35)

(27/35)

Fipronil (s)-methoprene³

30/2

Geomean

28.1^a

4.1^b

6.4^b

13.6^b

14.2^b

8.0^b

12.7^b

% control

85.5

77.3

51.5

49.5

71.6

54.8

% (#) pets with no fleas

0.0

15.6

15.6

9.4

6.3

21.9

15.6

(0/32)

(5/32)

(5/32)

(3/32)

(2/32)

(7/32)

(5/32)