Animal drug adverse event reports

MSK

Dog · Reactions: Lack of efficacy (ectoparasite) - flea

Animal Owner
Treated for ae
false
Unique aer ID number
USA-USFDACVM-2026-US-035576
Original receive date
20260626
Number of animals affected
1
Primary reporter
Animal Owner
Number of animals treated
1
Secondary reporter
Other Health Care Professional
Onset date
20260616
Foreign or domestic
Domestic
Report ID
N141521
Type of information
Lack Of Expected Effectiveness
Serious ae
false
Reaction
  1. Veddra version
    21
    Veddra term code
    2649
    Veddra term name
    Lack of efficacy (ectoparasite) - flea
    Number of animals affected
    1
    Accuracy
    Actual
Receiver
Organization
Food and Drug Administration Center for Veterinary Medicine
Street address
7500 Standish Place (HFV-210) Room N403
City
Rockville
State
MD
Postal code
20855
Country
USA
Drug
  1. First exposure date
    20260220
    Last exposure date
    20260616
    Administered by
    Animal Owner
    Route
    Oral
    Used according to label
    true
    Previous exposure to drug
    true
    Previous ae to drug
    false
    Lot number
    858908
    Brand name
    MSK
    Dosage form
    Tablet, chewable
    Atc vet code
    QP54AB52
    Frequency of administration
    Value
    1
    Unit
    Month
    Dose
    Numerator
    1
    Numerator unit
    dose
    Denominator
    1
    Denominator unit
    Animal
    Manufacturer
    Name
    MSK
    Registration number
    USA-USFDACVM-N141521
    Active ingredients
    1. Name
      Pyrantel Pamoate;Sarolaner
      Dose
      Numerator
      1
      Numerator unit
      Unknown
      Denominator
      1
      Denominator unit
      Unknown
Health assessment prior to exposure
Condition
Unknown
Assessed by
Veterinarian
Animal
Species
Dog
Gender
Female
Reproductive status
Unknown
Female animal physiological status
Unknown
Age
Min
3.00
Unit
Year
Qualifier
Measured
Weight
Min
28.576
Unit
Kilogram
Qualifier
Measured
Breed
Is crossbred
false
Breed component
Shepherd Dog - German
Outcome
  1. Medical status
    Outcome Unknown
    Number of animals affected
    1
Wholesale access for licensed clinicians.

Free to join: your NPI is checked against the federal registry at signup, then wholesale pricing and the professional shelves open.

Join as a DoctorSell on MedGrid

How to read this: Each report says someone told FDA an event happened while a product was used. A report does not show the product caused it, and counts rise and fall with how many people report. Data from openFDA, FDA's public API. FDA says not to rely on it to make decisions about medical care and to treat every result as unvalidated; confirm against FDA's own record and the product labeling. Not medical or legal advice.