New incident report
Incident Report Number: 2019-7169
Registrant Reference Number: USA-BAYERBAH-2019-US0068610 (Report 611323)
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: FLORIDA
PMRA Registration No. PMRA Submission No. EPA Registration No. 11556-155
Product Name: Seresto Cat collar
Other (specify)
COLLARYes
Other Units: COLLAR
Site: Animal / Usage sur un animal domestique
Animal's Owner
Cat / Chat
American Shorthair
1
Male
13
9.98
kg
Skin
>1 mo <= 6 mos / > 1 mois < = 6 mois
>1 wk <=1 mo / > 1 sem < = 1 mois
System
Unknown / Inconnu
Yes
Yes
1
Day(s) / Jour(s)
Died
Treatment / Traitement
(eg. description of the frequency and severity of the symptoms
On approximately 01-Oct-2019, the cat exhibited a behavior change, hiding, localized pruritus at the tail base, skin discoloration, hair discoloration, and circling while scratching. Fleas were visualized on the cat. The cat was evaluated by a veterinarian. Upon exam the cat had lost weight to approximately 13 pounds. Unspecified blood work was performed and exhibited unspecified anemia and a renal disorder nos. The cat was administered an unspecified injection by the veterinarian and hospitalized. On approximately 02-Oct-2019, the cat died. No autopsy was performed. Follow-Up received on 2nd Dec 2019: No more information is expected.
Death
SLEE/fleas. Reported behaviour signs are unspecific and may have numerous other causes. Signs are not expected to appear after long time and may be associated with reported skin disorders and flea infestation. Pruritus is not typically seen with appropriate topical product use. Pruritus in this case rather associated with current flea infestation. However, presence of fleas is not a sign of inefficacy. Product is not a repellent. Fleas have to be on the animal to come into contact with the product to be killed. Unknown if re-infestation from infested environment (e.g. by means of other untreated animals, wildlife) occurred. In this case product was applied previously; however, exact duration and dates of treatment are unknown. Additionally reported skin discoloration and hair discoloration are not expected with topical product administration. Other causes must be considered. Further reported weight loss is not expected after topical product application and may be associated with concomitant thyroid issue. Diagnosed anaemia and renal disorder which was followed by death are 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. No signs of anaphylaxis reported which would have occurred in close proximity to the collar application. Death was likely associated with diagnosed anaemia and renal disorder. Other causes are more probable in this geriatric animal. Also some information missing regarding animal health status and necropsy report. Considering all aspects, a product involvement is unassessable.