New incident report
Incident Report Number: 2020-1510
Registrant Reference Number: USA-BAYERBAH-2020-US0014368 (Report 629381)
Registrant Name (Full Legal Name no abbreviations): Bayer inc
Address: 2920 Matheson Blvd
City: Mississaugua
Prov / State: ON
Country: Canada
Postal Code: L4W 5R6
Domestic Animal
Country: UNITED STATES
Prov / State: VIRGINIA
PMRA Registration No. PMRA Submission No. EPA Registration No. 11556-155
Product Name: Seresto Large Dog
Other (specify)
COLLARYes
Other Units: COLLAR
Site: Animal / Usage sur un animal domestique
Animal's Owner
Dog / Chien
Crossbred (Pit Bull x)
1
Female
10
29.484
kg
Skin
>1 wk <=1 mo / > 1 sem < = 1 mois
>24 hrs <=3 days / >24 h <=3 jours
System
Unknown / Inconnu
Yes
No
Died
Treatment / Traitement
(eg. description of the frequency and severity of the symptoms
On approximately 17-Mar-2020, the dog exhibited a skin lesion, a purulent lesion and hair loss, all localized to the face. An unspecified spray was applied to the affected area daily by the animal owner. On approximately 21-Mar-2020, the purulent lesion was healed on the face, but the dog exhibited tremors, application site mucopurulent discharge, an application site skin lesion and application site hair loss. An unspecified spray was applied to the affected area daily by the animal owner. On approximately 07-Apr-2020, the tremors resolved. The dog exhibited a localized skin lesion, a purulent lesion, hair loss and intermittent emesis. The collar was removed. On 13-Apr-2020, the dog exhibited a bloated abdomen. The dog was evaluated by a veterinarian, no treatments were provided and the dog died. No necropsy was performed.
Death
O - Unclassifiable/unassessable Reported skin disorders (all localized to the face) are not typically seen with topical product administration. Though initial pruritus may be seen with collar use, other skin disorders are not expected. Time to onset is consistent for initial signs while long for later, additionally reported localized skin lesion, a purulent lesion and hair loss. Transient mild application site disorders may occur in sensitive animals after product application but the described application site mucopurulent discharge is not typically seen with product use. Unclear if correct fit of collar was checked periodically as recommended in the product information and thus development of signs not noticed. In this case, concomitant medical condition of pruritus may have contributed to the earlier described signs. Reported tremors are not typically seen with appropriate topical product administration. This is supported by the extremely low systemic exposure with imidacloprid and flumethrin, particularly during the first week after application and also thereafter. Even with oral product exposure which was not reported only transient gastrointestinal signs are expected. Time to onset is consistent. Emesis is unspecific and may have numerous other causes (e.g. gastrointestinal infection, dietary incompatibility). Though mild gastrointestinal signs may occur shortly after product application, they are not expected to appear with long time to onset. But bloated abdomen is not expected with topical product application. Later reported death is not expected following appropriate topical product application as inconsistent with product's pharmacological profile. Oral exposure to the collar is not expected to cause serious signs either. An overdose of 5 collars around the neck was investigated in adult cats and dogs for an 8 months period and in 10 week old kittens and 7 week old puppies for a 6 months period without causing serious signs. This is supported by the extremely low systemic exposure with imidacloprid and flumethrin, particularly during the first week after application and also thereafter. Time to onset is long. Moreover, bloated stomach and death are reported long time after collar removal. Thus, other unrelated causes must be considered in this geriatric dog. Considering all aspects, a product relation is unassessable.