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Table 4 Dog owner ectoparasiticide purchases with and without gaps, including average gap duration between doses

From: An assessment of canine ectoparasiticide administration compliance in the USA

Doses purchased

Fluralanera (n = 170,792)

Afoxolaner (n = 248,393)

Sarolaner (n = 70,916)

Lotilaner (n = 16,536)

One dose (Total n, % of total)

92,153 (54%)

96,151 (39%)

22,416 (32%)

7401 (45%)

Two to 12 doses (%)

(46%)

(61%)

(68%)

(55%)

Total purchasing > 1 dose

78,639

152,242

48,500

9135

No gap (n, %)

27,435 (35%)

104,945 (69%)

28,078 (58%)

5587 (61%)

Purchase gap (n, %)

51,204 (65%)

47,297 (31%)

20,422 (42%)

3548 (39%)

Purchased ≥ 2 doses

78,639

152,242

48,500

9135

Total with 1–2 dose gap (%)

42,638 (54%)

28,527 (19%)

11,049 (23%)

2041 (22%)

Average gap (weeks)

12.8

12.9

20.3

8.9

Purchased ≥ 3 doses

31,241

111,420

39,695

6426

Total with 2–3 dose gap (n, %)

17,543 (56%)

11,753 (11%)

6040 (15%)

1214 (19%)

Average gap (weeks)

8.5

9.9

16.4

6.5

Purchased ≥ 4 doses

11,742

81,992

29,184

4943

Total with 3–4 dose gap (n, %)

4206 (36%)

12,100 (15%)

5641 (19%)

731 (15%)

Average gap (weeks)

4.8

10.1

17.6

6.4

Purchased ≥ 5 doses

1631

69,702

25,583

4271

Total with 4–5 dose gap (n, %)

457 (28%)

4389 (6%)

2416 (9%)

436 (10%)

Average gap (weeks)

3.3

7.0

12.9

4.4

Purchased ≥ 6 doses

 

65,205

23,721

3912

Total with 5–6 dose gap (n, %)

 

2455 (4%)

1344 (6%)

230 (6%)

Average gap (weeks)

 

5.7

10.7

4.0

Purchased ≥ 7 doses

 

31,598

10,020

1862

Total with 6–7 dose gap (n, %)

 

5868 (19%)

4187 (42%)

421 (23%)

Average gap (weeks)

 

9.1

19.4

9.8

Purchased ≥ 8 doses

 

22,302

7136

1416

Total with 7–8 dose gap (n, %)

 

1246 (6%)

608 (9%)

114 (8%)

Average gap (weeks)

 

4.3

8.8

3.9

Purchased ≥ 9 doses

 

18,415

5876

1172

Total with 8–9 dose gap (n, %)

 

703 (4%)

334 (6%)

62 (5%)

Average gap (weeks)

 

3.4

8.6

3.1

Purchased ≥ 10 doses

 

14,734

4495

972

Total with 9–10 dose gap (n, %)

 

510 (4%)

332 (7%)

35 (4%)

Average gap (weeks)

 

3.4

10.3

4.0

Purchased ≥ 11 doses

 

13,213

3892

865

Total with 10–11 dose gap (n, %)

 

137 (1%)

74 (2%)

14 (2%)

Average gap (weeks)

 

2.3

6.9

2.6

Purchased 12 doses

 

12,044

3478

770

Total with 11–12 dose gap (n, %)

 

32 (0.3%)

16 (0.5%)

7 (1%)

Average gap (weeks)

 

2.1

3.6

1.6

  1. aThe dosing interval for fluralaner is 12 weeks for most parasites, according to the product label; a maximum of five doses of purchased topical fluralaner were considered for the 12-month period studied. (Note: up to seven doses of fluralaner may be required for full-year protection in areas where Amblyomma americanum is of concern)