Excessive thirst after Pyrantel + Sarolaner (Simparica Trio) in dogs

332 reports to the FDA describe excessive thirst in dogs given Pyrantel + Sarolaner. That is 0.6% of all reports for this medicine, compared with 1.4% across reports for all dog medicines, so it is reported less often than average with this medicine.

332Reports
45%Marked serious
15%Recovered
5.7%Died or euthanised
1 daysTypical onset
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How soon it started

Same day
121 39%
1–2 days
69 22%
3–7 days
41 13%
1–4 weeks
37 12%
Over a month
41 13%

How the animals did

Recovered
50 15%
Still unwell when reported
173 52%
Died
11 3.3%
Euthanised
8 2.4%
Not known
90 27%

Problems reported at the same time

Age of the animals

Under 1 year
58
1–3 years
54
4–7 years
77
8–11 years
81
12+ years
44

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 excessive thirst in dogs?
332 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).

Excessive thirst with similar medicines

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