Seizures after Imidacloprid in dogs

43 reports to the FDA describe seizures in dogs given Imidacloprid. That is 2.3% of all reports for this medicine, compared with 4.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

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How soon it started

How the animals did

Problems reported at the same time

Age of the animals

About this medicine

Imidacloprid kills fleas (spot-on or collar).

Questions owners ask

Can Imidacloprid cause seizures in dogs?

43 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.

How soon after a dose was it reported?

In half of the reports with dates, it started within 2 days of the first dose.

What should I do?

Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Seizures with similar medicines

• Seizures after Spinosad (Comfortis) 2,116 reports · 3.7% of its reports
• Seizures after Lufenuron + Milbemycin Oxime (Sentinel) 937 reports · 3.6% of its reports
• Seizures after Imidacloprid + Moxidectin (Advantage Multi) 520 reports · 4.0% of its reports
• Seizures after Nitenpyram (Capstar) 331 reports · 3.1% of its reports
• Seizures after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) 279 reports · 2.8% of its reports
• Seizures after Fipronil + S-methoprene (Frontline Plus) 214 reports · 7.2% of its reports
• Seizures after Flumethrin + Imidacloprid (Seresto) 123 reports · 5.4% of its reports
• Seizures after Fipronil 72 reports · 5.1% of its reports
• Seizures after Lufenuron 65 reports · 6.4% of its reports
• Seizures after Imidacloprid + Permethrin + Pyriproxyfen 34 reports · 4.6% of its reports

All reported side effects of Imidacloprid in dogs · Medicines most reported with seizures