Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs.

Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs. Research Abstract Details 

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Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs. Abstract Text:

K Heaney,R G Lindahl,K Heaney,R G Lindahl,

Four laboratory studies were conducted in Beagle dogs to evaluate the safety of a novel ectoparasiticide combination of metaflumizone plus amitraz (ProMeris((R))/ProMeris Duo((R)) for Dogs, Fort Dodge Animal Health, Overland Park, KS) when applied according to the recommended dosage of >/=20mgmetaflumizonekg(-1) plus >/=20mgamitrazkg(-1), at exaggerated and repeated dosages, and if accidentally orally ingested. Parameters evaluated included body weight, food consumption, clinical, physical and neurological examinations, clinical pathology and gross and microscopic pathology. Exaggerated and repeated topical treatment with metaflumizone plus amitraz administered at 1x, 3x and 5x the recommended dose had no effect on clinical findings, heart rates, body weight, food consumption, physical/neurological examinations, macroscopic and microscopic pathology. Very slight, transient, clinically insignificant increases in serum urea nitrogen were noted in some dogs treated at all dose rates tested. This effect was not persistent, was not dose-responsive, nor aggravated by repeated applications and was not associated with a corresponding increase in creatinine or renal pathology. Therefore, these increases in urea nitrogen were suspected to be of non-renal origin and were not considered toxicologically significant. Exaggerated doses (3x and 5x) caused very mild, transient hyperglycemia, most notably in some adult females. Transient and inconsistently noted mild increases in leukocytes, neutrophils and monocytes were observed in some 3x and 5x treated dogs at some intervals. None of the effects noted were aggravated by repeated administration. When 10% of the recommended topical dose was orally administered to mimic exposure due to licking the application, avoidance behaviors including spitting, head shaking, and salivation were noted immediately in all animals. Consequently, voluntary oral ingestion is considered unlikely. Transient decreased activity, slightly reduced body temperature and pale oral mucous membranes were noted in some animals beginning 1-2h posttreatment. Ataxia, resolving within 4h posttreatment, was noted in one female. Oral administration had no effect on clinical pathology. Results from these four studies indicate repeated use of metaflumizone plus amitraz causes no adverse health effects when used as recommended in dogs as young as 8 weeks of age.

Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs. Publishing Authors By Initials

K Heaney,RG Lindahl,K Heaney,RG Lindahl,

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Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Veterinary parasitology

VOLUME: 150

Page Numbers: 225-32

Journal Abbreviation: Vet. Parasitol.

ISSN: 0304-4017

DAY: 24

MONTH: 10

YEAR: 2007

Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs. Information

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LANGUAGE: eng

NlmUniqueID: 7602745

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Grant and Affiliation Information for Safety of a topically applied spot-on formulation of metaflumizone plus amitraz for flea and tick control in dogs.

AFFILIATION: Fort Dodge Animal Health, P.O. Box 5366, Princeton, NJ 08543, USA.

Country: Netherlands

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MEDLINETA: Vet Parasitol

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