Fenbendazole
Dosage
Fenbendazole Wormer
Dosage
Treatment is necessary
for 3 consecutive days, also treatment may require a
second course depending on which parasite is being
treated. Treatment-related physical signs reported
included diarrhoea and red material in
faeces. For dogs and cats, 25 mg per pound (50
mg/kg) daily for three consecutive days is usually
effective.
Treatment should
be repeated when natural re-infection with parasitic
worms occurs. Even if your pet feels better, the
entire treatment plan should be completed to prevent
relapse or prevent the development of
resistance.
The incidence of
inflammatory lesions and proliferative lesions was
unrelated to fenbendazole treatment. Efficacy is
dependent on the correct dose level based on body weight
over the appropriate treatment period. Consult your
veterinarian for assistance in the diagnosis, treatment,
and control of parasitism.
Contraindications/Precautions
- Fenbendazole is not official for use in lactating dairy
cattle or for horses planned for food
purposes.
Adverse
Effects/Warnings - At typical doses, fenbendazole
commonly does not initiate any adverse effects.
Hypersensitivity reactions secondary to antigen discharge
by dying parasites may happen; particularly at high
dosages. Vomiting may infrequently appear in dogs or cats
getting fenbendazole.
Overdosage/Toxicity
- Fenbendazole is well tolerated
at doses up to 100X recommended. The LD50 in laboratory animals
exceeds 10 grams/kg when administered PO. It is doubtful an
acute overdosage would lead to clinical
symptoms.
Drug
Interactions - Oxfendazole or fenbendazole
should not be given concurrently with the bromsalan
flukicides (Dibromsalan, Tribromsalan). Abortions in
cattle and death in sheep have been reported after using
these compounds together.
Lone
doses (even at exaggerated doses) are
not effective in dogs and cats; They must be treated
for 3 days.
Chemistry - A benzimidazole
anthelmintic, fenbendazole occurs as a white, crystalline
powder. It is only slightly soluble in
water.
Storage/Stability/Compatibility
- Fenbendazole products
should be stored at room temperature.
CAUTIONS: Keep this and all medication out
of the reach of children.
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