Drug administration error after Lufenuron + Milbemycin Oxime (Sentinel) in dogs

47 reports to the FDA describe drug administration error in dogs given Lufenuron + Milbemycin Oxime. That is 0.2% of all reports for this medicine, compared with 0.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

47Reports
57%Marked serious
26%Recovered
0.0%Died or euthanised
77 daysTypical onset
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How soon it started

Same day
4 25%
1–2 days
2 13%
3–7 days
1 6.3%
1–4 weeks
1 6.3%
Over a month
8 50%

How the animals did

Recovered
12 26%
Still unwell when reported
25 53%
Not known
10 21%

Problems reported at the same time

Age of the animals

Under 1 year
5
1–3 years
19
4–7 years
10
8–11 years
8
12+ years
3

About this medicine

Lufenuron stops flea eggs from developing. Milbemycin Oxime prevents heartworm and controls some intestinal worms (monthly).

Products with this combination include Sentinel. The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Lufenuron + Milbemycin Oxime cause drug administration error in dogs?
47 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 77 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).

Drug administration error with similar medicines

All reported side effects of Lufenuron + Milbemycin Oxime in dogs · Medicines most reported with drug administration error