Table 1.

2012 wholesale distribution of animal antimicrobials in BC parsed into retail distribution channels (kg).

Antimicrobial classa	Active ingredientsa,b	BC production animal wholesale distribution		Retail distribution
				BC LD OTC Retail Outlets	Feed Mills		Veterinarians
		CAHI BC Production Animal	Non- CAHI BC Distribution		BC LD Livestock and Poultry (OTC)	BC LD Aquaculture (Rx)	BC Livestock and Poultryc	CAHI BC Companion Animal
Aminoglycosides	Amikacin, apramycin, dihydrostreptomycin, gentamicin, neomycin, spectinomycin, streptomycin	597	10	626	10		−29	1
β-Lactams and penicillin	Amoxicillin, ampicillin, clavulanic acid, cloxicillin, penicillin G	9719		1433	1724		6562	247
Cephalosporins	Cefaclor, cefadroxil, cefovecin, ceftiofur, cephapirin	251					251	406
Fluoroquinolones	Enrofloxacin, danofloxacin, difloxacin, marbofloxacin, orbifloxacin	20					20	22
Ionophores	Lasalocid, maduramicin, monensin, narasin, nicarbazin, salinomycin	26 973			32 052		−5079
Lincosamides	Clindamycin, lincomycin, pirlimycin	81			22		59
Macrolides	Erythromycin, gamithromycin, tildipirosin, tilmicosin, tulathromycin, tylosin	454			414		40
Other antimicrobials	Bacitracin, bambermycin, florfenicol, nitrofurantoin, nitrofurazone, novobiocin, ormethoprim, polymyxin, tiamulin, virginiamycin	17 133			15 660d	702e	771	123
Tetracyclines	Chlortetracycline, oxytetracycline, tetracycline	15 233	12	610	4915	4764	4956
Trimethoprim and sulfonamides	Sulfabenzamide, sulfacetamide, sulfadiazine, sulfadimethoxine, sulfadoxine, sulfaguanidine, sulfamerazine, sulfamethazine, sulfanilamide, sulfaquinoxaline, sulfathiazole, trimethoprim	2059	119f	130f	1142	106	800	41
	Total	72 520	141	2799	55 939	5572	8351	840

^aThe antimicrobial classes and the active ingredients in each class are those reported by CIPARS (4).

^bUnderlines denote sold in BC LD OTC Retail Outlets or BC LD Livestock and Poultry Feed Mills.

^cDistribution by BC Livestock and Poultry Veterinarians = CAHI BC Production Animal + Non-CAHI BC Distribution — BC LD OTC Retail Outlets — BC LD Livestock and Poultry Feed Mills — BC LD Aquaculture Feed Mills.

^dConsists of: bacitracin 13 679 kg; bambermycin 2 kg; tiamulin 71 kg; virginiamycin 1908 kg.

^eFlorfenicol.

^fIncludes succinylsulfathiazole.