New incident report
Incident Report Number: 2018-0934
Registrant Reference Number: USA-BAYERBAH-2018-US0003125 (Report 469210)
Registrant Name (Full Legal Name no abbreviations): Bayer inc
Address: 2920 Matheson BLVD
City: Mississaugua
Prov / State: ON
Country: Canada
Postal Code: L5W5R6
Domestic Animal
Country: UNITED STATES
Prov / State: ILLINOIS
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
Cat / Chat
Birman (Sacred Birman)
1
Male
5
2.127
kg
Skin
>1 wk <=1 mo / > 1 sem < = 1 mois
>3 days <=1 wk / >3 jours <=1 sem
System
Persisted until death
Yes
Yes
5
Day(s) / Jour(s)
Died
Treatment / Traitement
(eg. description of the frequency and severity of the symptoms
On approximately 28 Nov2017, the cat was inappetent. On approximately 04Dec2017, the cat was eating litter (pica) and had other behavior changes. On 5 Dec 2017, the collar was removed from the cat. On 20 Dec 2017, the cat was weak in rear limbs when dropped off with the veterinarian for castration to be performed. The cat was anesthetised with unspecified medications and castration was performed. On an unspecified date in Dec 2017, the rear limb weakness worsened. On 27Dec2017, the cat was examined by a veterinarian for scissor step gait and was diagnosed with a luxation of the patellae. On approximately 5Jan2018, the cat was barely walking and lethargic. On an unspecified date in Jan2018, the cat was examined by another veterinarian and diagnosed with unspecified congenital disease. On approximately 20 Jan2018, the cat was hospitalized with a holistic veterinarian who monitored the cat for 5 days. On 25Jan2018 the cat was returned to the owner with better appetite and more energy (lethargy resolved). The cat died that night. No necropsy was performed. No further information is expected. This case is closed.
Death
N - Unlikely Inappetence is unspecific and may have numerous other causes. Sign may occur initially after collar administration. Further reported signs pica and behavioural change are also unspecific and are not expected to appear after long time (10 days). Reported musculoskeletal disorders and neurological disorders are not expected after appropriate topical product application, especially not to start 15 days after collar removal. The cat was castrated even though weak rear limbs were reported. Later reported lethargy (1 month after collar removal) is unspecific and likely associated with other clinical signs. It is possible that the later dignosed congenital disease was responsible for the observed signs, including the death of the animal. Even oral exposure to the collar, which was not reported in this case, 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. No signs of anaphylaxis reported which would have occurred in close proximity to the collar application. Even though time to onset for initial signs is short, later reported signs occurred long time after product removal which suggests other unrelated causes, i.e. congenital disorder. Finally, even though some information (e.g. necropsy results) missing, considering diagnosis of congenital disease and timeline, no plausible connection can be made to the product and a product relation is deemed to be unlikely.