Narasin + Nicarbazin

160 adverse event reports submitted to the FDA

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.

160

Total Reports

109

Deaths Reported

6810.0%

Death Rate

Active Ingredients

NarasinNicarbazin

Administration Routes

OralUnknownRespiratory (Inhalation)Ophthalmic

Species Affected

Chicken 156

Human 2

Unknown 1

Dog 1

Most Affected Breeds

Chicken (unknown) 121

Chicken (other) 28

Chicken (unspecified) 4

Unknown 3

Cornish Cobb 1

Crossbred Chicken 1

Dog (unknown) 1

Mixed (Chicken) 1

Most Reported Reactions

Death 68

Lack of efficacy (protozoa) - Coccidia 53

Increased mortality rate 40

Lack of efficacy - NOS 17

NT - Abnormal necropsy finding NOS 15

Enteritis 14

Loss of egg quantity 14

Digestive tract disorder NOS 12

Loss of egg quality 11

Abnormal necropsy finding 9

Death by euthanasia 8

Dermatitis 7

Outcome Breakdown

Died

104 (51.7%)

Outcome Unknown

66 (32.8%)

Euthanized

14 (7.0%)

Recovered/Normal

12 (6.0%)

Recovered with Sequela

4 (2.0%)

Ongoing

1 (0.5%)

Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.