Blood problems after Telmisartan in cats

22 reports to the FDA describe blood problems in cats given Telmisartan. That is 7.5% of all reports for this medicine, compared with 1.9% across reports for all cat medicines, so it is reported unusually often with this medicine.

22Reports
59%Marked serious
9.1%Recovered
14%Died or euthanised
49 daysTypical onset
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How soon it started

Same day
1 6.7%
1–2 days
1 6.7%
3–7 days
0 0.0%
1–4 weeks
3 20%
Over a month
10 67%

How the animals did

Recovered
2 9.1%
Still unwell when reported
4 18%
Euthanised
3 14%
Not known
13 59%

Problems reported at the same time

Dehydration
4 18%
Hyperphosphataemia
3 14%
3 14%

Age of the animals

Under 1 year
0
1–3 years
0
4–7 years
0
8–11 years
8
12+ years
14

About this medicine

Type: medicine.

Questions owners ask

Can Telmisartan cause blood problems in cats?
22 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 49 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).

Blood problems with similar medicines

All reported side effects of Telmisartan in cats · Medicines most reported with blood problems