Doses - FENBENDAZOLE

Dogs:

For susceptible Ascarids, hookworms, whipworms, and tapeworms (Taenia spp. only):
a) 50 mg/kg PO for 3 consecutive days. (Package insert; Panacur®¯Hoechst), (Corneliusand Roberson 1986)
b) 55 mg/kg PO for 3 days (5 days for Taenia). (Chiapella 1988), (Reinemeyer 1985)
For Ascarids:
a) 50 mg/kg PO once daily for 3 days. (Todd, Paul, and DiPietro 1985)
For Capillaria plica:
a) 50 mg/kg once daily for 3 days; repeat a single 50 mg/kg dose 3 weeks later. (Todd,
Paul, and DiPietro 1985)
b) 50 mg/kg PO daily for 3-10 days. (Brown and Prestwood 1986)
For Capillaria aerophilia:
a) 25 - 50 mg/kg q12h for 10-14 days. (Hawkins, Ettinger, and Suter 1989)
b) 50 mg/kg PO once daily for 10-14 days (Reinemeyer 1995)
For Filaroides hirthi:
a) 50 mg/kg PO once daily for 14 days. Symptoms may worsen during therapy, presumably due to a reaction when the worm dies. (Hawkins, Ettinger, and Suter 1989)
b) 50 mg/kg PO once daily for 10-14 days(Reinemeyer 1995)
For Taenia spp. tapeworms (not effective against Dipylidium caninum):
a) 50 mg/kg PO for 3 days. (Todd, Paul, and DiPietro 1985)
For Paragonimus kellicoti:
a) 50 - 100 mg/kg PO divided twice daily for 10-14 days. (Todd, Paul, and DiPietro 1985)
b) 50 mg/kg PO once daily for 10-14 days(Reinemeyer 1995)
For Trichuris Colitis: Typhlitis:
a) 50 mg/kg PO once daily for 3 consecutive days; repeat in 2-3 weeks and again in 2months. (DeNovo 1988)
For Crenosoma vulpis:
a) 50 mg/kg PO once daily for 3 days(Reinemeyer 1995)
For Giardia:
a) 50 mg/kg PO once daily for 3 days (Barr and Bowman 1994)
For Eucoleus boehmi:
a) 50 mg/kg PO once daily for 10-14 days; improvement may only be temporary(Reinemeyer 1995)

Cats:

For susceptible Ascarids, hookworms, Strongyloides, and tapeworms (Taenia spp. only):
a) 50 mg/kg PO for 5 days. (Dimski 1989)
For lungworms (Aelurostrongylus abstrusus):
a) 20 mg/kg PO once daily for 5 days; repeat after 5 days. (Todd, Paul, and DiPietro1985)
b) 25 - 50 mg/kg q12h for 10-14 days. (Hawkins, Ettinger, and Suter 1989)
c) 50 mg/kg PO for 10 days. (Pechman 1989)
d) 20 mg/kg PO once daily for 5 days; repeat in 5 days(Reinemeyer 1995)
For lungworms (Capillaria aerophilia):
a) 50 mg/kg PO for 10 days. (Pechman 1989)
b) 50 mg/kg PO once daily for 10-14 days(Reinemeyer 1995)
For Capillaria feliscati:
a) 25 mg/kg bid PO for 3-10 days. (Brown and Prestwood 1986)
b) 25 mg/kg PO q12h for 10 days. (Brown and Barsanti 1989)
For Paragonimus kellicoti:
a) 50 mg/kg PO daily for 10 days. (Pechman 1989)
b) 50 mg/kg PO once daily for 10-14 days(Reinemeyer 1995)

Cattle:

For removal/control of Haemonchus contortus, Ostertagia ostertagi, Trichostrongylus axei,
Bunostomum phlebotomum, Nematodirus helvetianus, Cooperia spp., Trichostrongylus colubriformis, Oesophagostomum radiatum, and Dictyocaulus vivaparus:
a) 5 mg/kg PO (Paul 1986)
b) 7.5 mg/kg PO (Roberson 1988b)
For Moniezia spp., and arrested 4th stage forms of Ostertagia ostertagi:
a) 10 mg/kg PO (Paul 1986), (Roberson 1988b)

Horses:

For susceptible parasites:
a) 5 mg/kg PO; 10 mg/kg once daily for 5 days to treat S. vulgaris in foals. (Robinson 1987)
b) 5 mg/kg PO; 10 mg/kg for ascarids. (Roberson 1988b)
c) For treatment of migrating large strongyles: 50 mg/kg PO for 3 consecutive days, or 10mg/kg for 5 consecutive days. (Herd 1987)

Swine:

For susceptible parasites:
a) 5 mg/kg PO; 3 mg/kg in feed for 3 days; 10 mg/kg for ascarids (Roberson 1988b)
b) For whipworms in potbellied pigs: 9 mg/kg PO for days (Braun 1995)

Sheep & Goats:

For susceptible parasites:
a) 5 mg/kg in feed for 3 days. (Roberson 1988b)
Llamas:
For susceptible parasites:
a) 10 - 15 mg/kg PO (as paste or suspension). (Fowler 1989)
b) 5 - 10 mg/kg PO for 1-3 days. Fenbendazole and ivermectin are the most effective andsafest anthelmintics for use in llamas. (Cheney and Allen 1989)
Birds:a) For Ascaris: 10 - 50 mg/kg PO once; repeat in 10 days. Do not use during molt (maycause stunted feathers) or while nesting.
For flukes or microfilaria: 10 - 50 mg/kg PO once daily for 3 days.
For Capillaria: 10 - 50 mg/kg PO once daily for 5 days. Is not effective against gizzardworms in finches. (Clubb 1986)
b) For nematodes, some trematodes: 10 -50 mg/kg PO once daily for 3-5 days; 20 - 100mg/kg oral single dose range; 125 mg/L of drinking water for 5 days (50 mg/L for 5days in finches); or 100 mg/kg of feed for 5 days. Not recommended to be used inbreeding season during molting. (Marshall 1993)

Reptiles:

For susceptible infections:
a) For most species: 50 - 100 mg/kg PO once; repeat in 2-3 weeks; very effective againststrongyloides. (Gauvin 1993)
Dosage Forms/Preparations/FDA Approval Status - Veterinary-Approved Products:
Fenbendazole Granules 222 mg/gram (22.2%) in 0.18 oz & 1 g, 2 g, 4 g packets and 1 lb jars;
Panacur® Granules 22.2% (Hoechst). (Rx) Approved for use in dogs.
Fenbendazole Granules 222 mg/gram (22.2%); Panacur® Granules 22.2% (Hoechst). (OTC)
Approved for use in horses not intended for food.
Fenbendazole Suspension 100 mg/ml (10%); available in both equine and bovine labeledproducts; Panacur® Suspension (Hoechst). (Rx) Approved for use in horses (not intendedfor food) and cattle Slaughter withdrawal=8 days (cattle). Safe-Guard® Suspension (Hoechst)(OTC) Approved for use in beef and dairy cattle. Slaughter withdrawal = 8 days
Fenbendazole Paste 100 mg/gram (10%); available in both equine and bovine labeled productsand sizes. Panacur® Paste (Hoechst). (OTC) Approved for use in horses (not intended forfood) and cattle. Slaughter withdrawal=8 days (cattle). Safe Guard Paste® (Hoechst) (OTC)
Approved for use in horses not intended for food and cattle. Slaughter withdrawal = 8 days; nomilk withdrawal time.
Fenbendazole Medicated Block 750 mg/lb.; 25 lb. block; Safe-Guard Sweetlix® (Hoechst);(OTC) Approved for use in beef cattle. Slaughter withdrawal= 16 days.
Fenbendazole Type B Medicated Feed
Safe-Guard EZ Scoop Swine Dewormer® (Hoechst) (OTC). 1.8% Fenbendazole Noslaughter withdrawal time required
Safe-Guard 0.96% Scoop Dewormer® (Hoechst) (OTC) Approved for use in cattle. No milkwithdrawal time; slaughter withdrawal time=13 days
Fenbendazole Type C Medicated Feed
Safe-Guard Free-choice Cattle Dewormer® (Hoechst) (OTC). 0.50% Fenbendazole (2.27g/lb) Approved for use in beef and dairy cattle. No milk withdrawal time.
Safe-Guard 35% Salt Free-choice Cattle Dewormer® (Hoechst) (OTC) 1.9 g/lb
Fenbendazole. Approved for use in dairy and beef cattle. Slaughter withdrawal time=13days; no milk withdrawal time.
Fenbendazole Pellets
Safe-Guard 0.5% Cattle Top Dress® (Hoechst) (OTC) Slaughter withdrawal time=13 days;no milk withdrawal period
Safe-Guard 1.96% Scoop Dewormer Mini Pellets® (Hoechst) (OTC) Approved for use inbeef and dairy cattle. No milk withdrawal time; slaughter withdrawal time=13 days
Fenbendazole Premix 20% Type A (200 mg/gram)
Safe-Guard Premix® (Hoechst). (OTC) Approved for use in swine. dairy and beef cattle, zoo& wildlife animals. Slaughter withdrawal for cat le = 13 days; no milk withdrawal time.
Slaughter withdrawal for swine=none. Wildlife animal slaughter (hunting) withdrawal =14 days.
Human-Approved Products: None