Lymphopenia after Cyclosporine (Atopica) in dogs

83 reports to the FDA describe lymphopenia in dogs given Cyclosporine. That is 0.5% of all reports for this medicine, compared with 0.3% across reports for all dog medicines, so it is reported unusually often with this medicine.

83Reports

51%Marked serious

7.2%Recovered

23%Died or euthanised

10 daysTypical onset

How soon it started

Same day

11 28%

1–2 days

4 10%

3–7 days

5 13%

1–4 weeks

5 13%

Over a month

15 38%

How the animals did

Recovered

4 4.8%

Recovered with lasting effects

2 2.4%

Still unwell when reported

28 34%

Died

14 17%

Euthanised

5 6.0%

Not known

30 36%

Problems reported at the same time

40 48%

38 46%

35 42%

34 41%

30 36%

22 27%

22 27%

21 25%

Age of the animals

Under 1 year

1–3 years

4–7 years

8–11 years

12+ years

About this medicine

Cyclosporine controls allergic skin disease and some immune conditions.

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

Questions owners ask

Can Cyclosporine cause lymphopenia in dogs?: 83 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 10 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).

Lymphopenia with similar medicines

Lymphopenia after Oclacitinib (Apoquel) 439 reports · 1.5% of its reports
Lymphopenia after Ilunocitinib (Zenrelia) 149 reports · 6.8% of its reports

All reported side effects of Cyclosporine in dogs · Medicines most reported with lymphopenia