Pain after Pyrantel + Sarolaner (Simparica Trio) in dogs

The FDA has received 148 reports of pain in dogs after Pyrantel + Sarolaner. That is 0.3% of all reports for this medicine, compared with 0.7% across reports for all dog medicines, so it is reported less often than average with this medicine.

148Reports
77%Marked serious
18%Recovered
13%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
45 32%
1–2 days
38 27%
3–7 days
16 12%
1–4 weeks
14 10%
Over a month
26 19%

How the animals did

Recovered
27 18%
Still unwell when reported
78 53%
Died
9 6.1%
Euthanised
10 6.8%
Not known
24 16%

Problems reported at the same time

Age of the animals

Under 1 year
27
1–3 years
44
4–7 years
34
8–11 years
28
12+ years
12

About this medicine

Pyrantel treats roundworms and hookworms. Sarolaner kills fleas, ticks and some mites; monthly.

Products with this combination include Simparica Trio (which also contains moxidectin). The FDA hides brand names in its public data, so these reports cover every product with the same active ingredients.

Questions owners ask

Can Pyrantel + Sarolaner cause pain in dogs?
148 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 1 day 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).

Pain with similar medicines

All reported side effects of Pyrantel + Sarolaner in dogs · Medicines most reported with pain