Table 3.

Percentage breakdown of canine antimicrobial agent prescriptions by antimicrobial agent class prescribed for total, systemic and topical prescriptions from a network of United Kingdom small animal veterinary premises.

Antimicrobial agent class	Total		Systemic		Topical
	%	95% CIa	%	95% CIa	%	95% CIa
Aminoglycoside	12.0	11.4–12.6	0.1	0.0–0.2	29.1	28.0–30.2
Amphenicol	1.9	1.6–2.1	0.0	<0.00	4.5	3.9–5.2
Other antimicrobial agentb	7.2	6.6–7.8	0.0	<0.00	17.4	16.1–18.8
β-lactam	43.6	42.3–44.8	73.8	72.2–75.4	0.1	0.0–0.2
Fluoroquinolone	4.4	3.6–5.1	4.1	3.1–5.2	4.6	4.0–5.2
Fusidic acid	18.2	17.4–19.0	0.0	<0.00	44.3	43.1–45.4
Lincosamide	4.7	4.2–5.2	7.9	7.0–8.8	0.0	<0.00
Macrolide	0.2	0.0–0.3	0.3	0.0–0.6	0.0	<0.00
Nitroimidazole	4.7	4.0–5.4	8.0	6.7–9.2	0.0	<0.00
Nitroimidazole-macrolide	0.8	0.5–1.0	1.3	0.8–1.7	0.0	<0.00
Rifamycin	0.0	<0.00	0.0	<0.00	0.0	<0.00
Sulphonamide	1.5	1.1–1.9	2.5	1.9–3.2	0.0	<0.00
Tetracycline	1.2	1.0–1.3	2.0	1.7–2.2	0.0	0.00–0.01

^a95% Confidence interval.

^bConsists of polymyxin b sulphate; mupirocin; novobiocin; thymol and bronopol.