New incident report
Incident Report Number: 2018-6756
Registrant Reference Number: USA-BAYERBAH-2018-US0070090 (Report 536894)
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: OREGON
PMRA Registration No. PMRA Submission No. EPA Registration No. 11556-155
Product Name: Seresto Cat
Other (specify)
COLLARYes
Other Units: COLLAR
Site: Animal / Usage sur un animal domestique
Unknown
Animal's Owner
Cat / Chat
Domestic Longhair
1
Male
15
Unknown
Skin
>15 min <=2 hrs / >15 min <=2 h
>8 hrs <=24 hrs / > 8 h < = 24 h
System
Persisted until death
Yes
No
Died
Treatment / Traitement
(eg. description of the frequency and severity of the symptoms
Approximately 2 hours post administration the collar was removed. On 22-Nov-2018, the collar was reapplied around the neck of the feline by the owner. On 23-Nov-2018 approximately 11 hours post reapplication, the exhibited abnormal behavior and the collar was removed. On 26-Nov-2018, the sign was resolved and collar was again reapplied around the neck of the feline. Approximately 10 hours post administration, the feline exhibited seemed more loving (behavior change). On 27-Nov-2018 approximately 12 hours post collar reapplication, the feline exhibited drooling, vomited once, defecated on the floor and began having convulsions. The collar was removed. Approximately 30 minutes post removal, the neck of the feline was washed with dish soap on the recommendations of an unknown emergency veterinary clinic staff member. Approximately 1 hour post collar removal, the convulsions worsened and the feline also exhibited panting, agitation, vocalization, fur on tail puffed us and running in circles for approximately 2 hours. The convulsions continued to worsen and at 6 am approximately 4 hours post collar removal the feline died. No necropsy was performed.
Death
O - Unclassifiable/unassessable Reported behavioural disorders are unspecific and may have various other causes. The product is not anticipated to cause serious neurological disorders such as convulsion after appropriate topical product administration as the controlled release mechanism assures release of only low doses of active ingredient at a time. Overdose of 5 collars around the neck of adult cats for an 8 months period and in 10 week old kittens for a 6 months period did not cause 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. Even with oral product exposure, convulsions are not seen. Merely gastrointestinal signs may occur. Any action or treatment may trigger seizures in an animal with a respective disposition. Various etiologies exist for seizure events or paroxysmal signs, e.g. heart disorder, development disorder, metabolic disorder, infection, intoxication, idiopathic epilepsy, trauma, neoplasms. Reported gastrointestinal signs, panting, agitation, vocalization, fur on tail puffed and running in circles are associated with convulsions. Death is not expected following appropriate topical product application as inconsistent with product's pharmacological profile. This is a geriatric animal having concomitant medical condition of hyperthyroidism and arthritis. Outcome was the consequence of reported convulsion. Collar was put on and off various times thus time to onset is difficult to define. Considering all aspects, product relation is unassessable.