Table 3.
Documented number of antimicrobial active ingredients used in horses in 2017 at the Clinic for Horses, by route of administration.
| Antimicrobial group and active ingredient | Injection | Oral | Topical | Total documented applications (%) |
|---|---|---|---|---|
| Aminoglycosides | 1,222 | – | 159 | 1,381 (14.69%) |
| Amikacin | 141 | – | – | 141 (1.50%) |
| Gentamicin | 1,081 | – | 3 | 1,084 (11.53%) |
| Neomycin | – | – | 156 | 156 (1.66%) |
| Rifamycin | – | 70 | – | 70 (0.74%) |
| Rifampicin | – | 70 | – | 70 (0.74%) |
| Penicillins | 1,312 | 50 | – | 1,362 (14.49%) |
| Amoxicillin | 1,094 | 50 | – | 1,144 (12.17%) |
| Benzylpenicillin | 218 | – | – | 218 (2.32%) |
| Cephalosporins | 61 | – | – | 61 (0.65%) |
| Cefquinome | 61 | – | – | 61 (0.65%) |
| Amphenicols | – | – | 3 | 3 (0.03%) |
| Chloramphenicol | – | – | 3 | 3 (0.03%) |
| Quinolones | 27 | 1 | 57 | 85 (0.90%) |
| Enrofloxacin | 4 | 1 | – | 5 (0.05%) |
| Marbofloxacin | 23 | – | – | 23 (0.24%) |
| Moxifloxacin | – | – | 53 | 53 (0.56%) |
| Ofloxacin | – | – | 4 | 4 (0.04%) |
| Macrolides | – | 52 | – | 52 (0.55%) |
| Azithromycin | – | 52 | – | 52 (0.55%) |
| Nitroimidazoles | 8 | 242 | 42 | 292 (3.11%) |
| Metronidazole | 8 | 242 | 42 | 292 (3.11%) |
| Polypeptide | 168 | – | 156 | 324 (3.45%) |
| Polymyxin-B | 168 | – | 156 | 324 (3.45%) |
| Sulfonamide | – | 2,757 | 41 | 2,798 (29.76%) |
| Sulfadiazine | – | 1,672 | 25 | 1,697 (18.05%) |
| Sulfadimethoxine | – | 1,085 | – | 1,085 (11.54%) |
| Sulfonamide | – | – | 16 | 16 (0.17%) |
| Tetracyclines | 1 | 144 | 72 | 217 (2.31%) |
| Chlortetracycline | – | – | 62 | 62 (0.66%) |
| Doxycycline | – | 144 | – | 144 (1.53%) |
| Oxytetracycline | 1 | – | 10 | 11 (0.12%) |
| Trimethoprim | – | 2,757 | – | 2,757 (29.32%) |
| Trimethoprim | – | 2,757 | – | 2,757 (29.32%) |
| Total | 2,799 | 6,073 | 530 | 9,402 (100.00%) |
–, observed zero; 0, zero by rounding. The bold values are the summary per antimicrobial group, the corresponding active ingredients are underneath.