Cyclosporine (Atopica) side effects in cats

3,039 reports sent to the FDA between 1997 and 2026 involve Cyclosporine in cats. The most reported problems were vomiting, loss of appetite, drooling. 36% were marked serious, and where it was recorded, signs eased after stopping the medicine in 36% of cases.

3,039Reports
36%Marked serious
66%Only medicine involved
32%Recovered
7.1%Died or euthanised
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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.

Most reported side effects

Share = percentage of this medicine's reports that mention the problem. One report can list several problems.

Reports that it didn't work

Some reports are about the medicine not working (for example a cat still getting fleas or heartworm), not about a side effect.

Didn't stop fleas
5 0.2%
Didn't stop worms
1 0.0%
Didn't stop mites
1 0.0%

How soon problems started

Same day
713 35%
1–2 days
140 6.8%
3–7 days
164 8.0%
1–4 weeks
278 14%
Over a month
757 37%

Time from the first dose to the first sign, where both dates were reported (2,052 reports).

How the animals did

Recovered
957 31%
Recovered with lasting effects
13 0.4%
Still unwell when reported
695 23%
Died
107 3.5%
Euthanised
108 3.6%
Not known
1,159 38%

Breeds named most often

Popular breeds appear more often because there are more of them.

Other anti-itch medicines for cats