TABLE 6-6.
Anthelmintics Approved for Nonlactating Dairy Animals
| Drug | Dose | Slaughter Withdrawal Time (days) | Spectrum/Comments |
|---|---|---|---|
| Albendazole | 10 mg/kg PO | 27 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, Moniezia (tapeworms), adult liver flukes (Fasciola) |
| Not for use in female dairy cattle of breeding age; potentially teratogenic if administered in early pregnancy | |||
| Doramectin injectable | 200 μg/kg SQ | 35 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, grubs, sucking lice, mites |
| Not for use in female dairy cattle of breeding age or in veal calves | |||
| Doramectin (pour-on) | 500 μg/kg topically | 45 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, grubs, sucking and biting lice, mites |
| Not for use in female dairy cattle of breeding age or in veal calves | |||
| Eprinomectin (pour-on) | 500 μg/kg topically | 0 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, grubs (Hypoderma), sucking and biting lice, mites, and horn flies |
| Effective when applied to wet cattle | |||
| Fenbendazole | 5 mg/kg PO | 8-13 (depending on product) | Gastrointestinal nematodes (adult), lungworms |
| 10-15 mg/kg PO | 8-13 (depending on product) | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, tapeworms | |
| Ivermectin (injectable) | 200 μg/kg SQ | 35 | Gastrointestinal nematodes (adult and larvae), including hypobiotic Ostertagia L4, Dictyocaulus (lungworm), grubs (Hypoderma), sucking lice, and mites |
| Not for use in female dairy cattle of breeding age or in veal calves | |||
| Ivermectin (pour-on) | 500 μg/kg topically | 48 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, Dictyocaulus (lungworm), grubs (Hypoderma), sucking and biting lice, mites, and horn flies |
| Not for use in female dairy cattle of breeding age or in veal calves | |||
| Levamisole | Varies with formulation | 7 days | Gastrointestinal nematodes (adult), lungworms |
| Not for use in female dairy cattle of breeding age | |||
| Moxidectin (injectable) | 200 μg/kg SQ | 21 days | Gastrointestinal nematodes (adult and larvae), including hypobiotic Ostertagia L4, Dictyocaulus (lungworm), grubs (Hypoderma), sucking lice, and mites |
| Not for use in female dairy cattle of breeding age or in veal calves | |||
| Moxidectin (pour-on) | 500 μg/kg topically | 0 | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, Dictyocaulus (lungworm), grubs (Hypoderma), sucking and biting lice, mites, and horn flies |
| Not for use in veal calves | |||
| Morantel tartrate | 0.44 g/100 lb PO | 14 days | Gastrointestinal nematodes (adult) |
| Oxfendazole | 4.5 mg/kg PO | 7 days | Gastrointestinal nematodes, including hypobiotic Ostertagia L4, lungworms, tapeworms |
| Not for use in female dairy cattle of breeding age | |||
| Clorsulon | 7 mg/kg | 8 days | Fasciola hepatica adults and late immature larvae |
| Clorsulon and Ivermectin | 1 ml/110 lb SQ | 49 days | Gastrointestinal nematodes (adult and larvae), including hypobiotic Ostertagia L4, lungworms, Fasciola hepatica adults, grubs (Hypoderma), sucking lice, and mites |
| Not for use in female dairy cattle of breeding age or in veal calves |
(Data Assembled from Information Given on Manufacturer's Labels)