Collapse after Lufenuron + Milbemycin Oxime + Praziquantel (Sentinel Spectrum) in dogs

The FDA has received 33 reports of collapse in dogs after Lufenuron + Milbemycin Oxime + Praziquantel. That is 0.3% of all reports for this medicine, compared with 0.9% across reports for all dog medicines, so it is reported less often than average with this medicine.

33Reports
88%Marked serious
42%Recovered
15%Died or euthanised
2 daysTypical onset
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How soon it started

Same day
10 38%
1–2 days
5 19%
3–7 days
8 31%
1–4 weeks
0 0.0%
Over a month
3 12%

How the animals did

Recovered
13 39%
Recovered with lasting effects
1 3.0%
Still unwell when reported
7 21%
Died
5 15%
Not known
7 21%

Problems reported at the same time

Age of the animals

Under 1 year
3
1–3 years
10
4–7 years
9
8–11 years
4
12+ years
6

About this medicine

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

Products with this combination include Sentinel Spectrum. 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 + Praziquantel cause collapse in dogs?
33 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).

Collapse with similar medicines

All reported side effects of Lufenuron + Milbemycin Oxime + Praziquantel in dogs · Medicines most reported with collapse