Advantage 40 mg Spot-on Solution for Small Cats, Small Dogs and Pet Rabbits
Authorised animal medicine, recorded in United Kingdom — VMD. This is a neutral reference record and does not provide dosing or veterinary advice.
Reference information only — not veterinary advice and not a dosing source. Always consult a licensed veterinarian before giving any medicine to an animal.
Spontaneous adverse-event reports that name Imidacloprid, by species — reported counts, not proven reactions.
Dog
12,574 reported events
openFDA
Top reactions: Lack of efficacy (ectoparasite) - flea (3,277) · Pruritus (2,083) · Vomiting (1,937) · Lethargy (see also Central nervous system depression in 'Neurological') (1,855) · Behavioural disorder NOS (1,372)
Cat
6,827 reported events
openFDA
Top reactions: Lack of efficacy (ectoparasite) - flea (1,412) · Hypersalivation (1,402) · Application site alopecia (1,124) · Lethargy (see also Central nervous system depression in 'Neurological') (1,102) · Behavioural disorder NOS (1,049)
Surveillance reference only — these are spontaneous adverse-event report counts, not proven adverse reactions, not causation and not a measure of any product's risk or safety. Always consult a licensed veterinarian.