Animal drug adverse event reports

MSK

Dog · Reactions: Lack of efficacy (endoparasite) - heartworm, Weight loss

VeterinarianSerious
Treated for ae
true
Unique aer ID number
USA-USFDACVM-2026-US-014448
Original receive date
20260327
Number of animals affected
1
Primary reporter
Veterinarian
Number of animals treated
1
Secondary reporter
Animal Owner
Onset date
20260316
Foreign or domestic
Domestic
Report ID
N141519
Type of information
Lack Of Expected Effectiveness
Serious ae
true
Reaction
  1. Veddra version
    21
    Veddra term code
    2430
    Veddra term name
    Lack of efficacy (endoparasite) - heartworm
    Number of animals affected
    1
    Accuracy
    Actual
  2. Veddra version
    21
    Veddra term code
    1043
    Veddra term name
    Weight loss
    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
    20250318
    Administered by
    Other Health Care Professional
    Route
    Subcutaneous
    Used according to label
    true
    Previous exposure to drug
    true
    Previous ae to drug
    false
    Lot number
    UNKNOWN
    Brand name
    MSK
    Dosage form
    Suspension
    Atc vet code
    QP54AB02
    Dose
    Numerator
    2.09
    Numerator unit
    mL
    Denominator
    1
    Denominator unit
    Animal
    Manufacturer
    Name
    MSK
    Registration number
    USA-USFDACVM-N141519
    Active ingredients
    1. Name
      Moxidectin
      Dose
      Numerator
      1
      Numerator unit
      Unknown
      Denominator
      1
      Denominator unit
      Unknown
  2. First exposure date
    20230824
    Last exposure date
    20240624
    Administered by
    Animal Owner
    Route
    Oral
    Lot number
    not given
    Brand name
    MSK
    Dosage form
    Tablet, chewable
    Frequency of administration
    Value
    1
    Unit
    Month
    Dose
    Numerator
    1
    Numerator unit
    dose
    Denominator
    1
    Denominator unit
    Animal
    Manufacturer
    Name
    MSK
    Active ingredients
    1. Name
      Ivermectin/Pyrantel
      Dose
      Numerator
      1
      Numerator unit
      Unknown
      Denominator
      1
      Denominator unit
      Unknown
  3. First exposure date
    20240724
    Last exposure date
    20250224
    Administered by
    Animal Owner
    Route
    Oral
    Lot number
    not given
    Brand name
    MSK
    Dosage form
    Tablet, chewable
    Frequency of administration
    Value
    1
    Unit
    Month
    Dose
    Numerator
    1
    Numerator unit
    dose
    Denominator
    1
    Denominator unit
    Animal
    Manufacturer
    Name
    MSK
    Active ingredients
    1. Name
      Afoxolaner, Moxidectin, And Pyrantel Chewable Tablets
      Dose
      Numerator
      1
      Numerator unit
      Unknown
      Denominator
      1
      Denominator unit
      Unknown
Health assessment prior to exposure
Condition
Good
Assessed by
Veterinarian
Animal
Species
Dog
Gender
Male
Reproductive status
Neutered
Female animal physiological status
NOT APPLICABLE
Age
Min
8.00
Unit
Year
Qualifier
Measured
Weight
Min
39.372
Unit
Kilogram
Qualifier
Measured
Breed
Is crossbred
true
Breed component
Rottweiler
Outcome
  1. Medical status
    Ongoing
    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.