L-Lysine
81 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.
81
Total Reports
9
Deaths Reported
1110.0%
Death Rate
Active Ingredients
L-Lysine
Administration Routes
OralUnknown
Species Affected
Cat 78
Turkey 2
Dog 1
Most Affected Breeds
Domestic Shorthair 52
Domestic Longhair 6
Domestic Mediumhair 5
Persian 3
Cat (unknown) 3
Cat (other) 2
Turkey (other) 1
Birman (Sacred Birman) 1
Siamese 1
Turkey (unknown) 1
Most Reported Reactions
Vomiting 13
Lethargy (see also Central nervous system depression in 'Neurological') 13
Ocular discharge 11
Weight loss 10
Anaemia NOS 9
Emesis 9
Other abnormal test result NOS 8
Behavioural disorder NOS 8
Death 7
Anorexia 7
Nasal discharge 6
Leucocytosis NOS 6
Outcome Breakdown
Ongoing
28 (33.7%)
Recovered/Normal
22 (26.5%)
Outcome Unknown
22 (26.5%)
Died
7 (8.4%)
Recovered with Sequela
2 (2.4%)
Euthanized
2 (2.4%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.