Hair loss after Cyclosporine (Atopica) in dogs

The FDA has received 358 reports of hair loss in dogs after Cyclosporine. That is 2.3% of all reports for this medicine, compared with 1.0% across reports for all dog medicines, so it is reported unusually often with this medicine.

358Reports

28%Marked serious

4.7%Recovered

4.2%Died or euthanised

27 daysTypical onset

How soon it started

Same day

11 11%

1–2 days

7 7.0%

3–7 days

2 2.0%

1–4 weeks

37 37%

Over a month

43 43%

How the animals did

Recovered

14 3.9%

Recovered with lasting effects

3 0.8%

Still unwell when reported

85 24%

Died

7 2.0%

Euthanised

8 2.2%

Not known

241 67%

Problems reported at the same time

Itching

71 20%

Skin rash or irritation

62 17%

58 16%

42 12%

41 11%

39 11%

34 9.5%

32 8.9%

Age of the animals

Under 1 year

1–3 years

4–7 years

121

8–11 years

105

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 hair loss in dogs?: 358 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 27 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).

Hair loss with similar medicines

Hair loss after Oclacitinib (Apoquel) 617 reports · 2.1% of its reports
Hair loss after Ilunocitinib (Zenrelia) 59 reports · 2.7% of its reports

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