Loss of appetite after Azithromycin in cats

The FDA has received 26 reports of loss of appetite in cats after Azithromycin. That is 31% of all reports for this medicine, compared with 14% across reports for all cat medicines, so it is reported unusually often with this medicine.

26Reports
69%Marked serious
3.8%Recovered
35%Died or euthanised
7 daysTypical onset
SponsoredWorried about your pet? Ask a veterinarian online, 24/7

How soon it started

Same day
5 19%
1–2 days
5 19%
3–7 days
5 19%
1–4 weeks
3 12%
Over a month
8 31%

How the animals did

Recovered
1 3.8%
Still unwell when reported
9 35%
Died
3 12%
Euthanised
6 23%
Not known
7 27%

Problems reported at the same time

13 50%
Death
9 35%
Vomiting
6 23%
Nasal discharge
5 19%
Weight loss
5 19%
Liver problems
4 15%
Blood problems
4 15%
Didn't work as expected
4 15%

Age of the animals

Under 1 year
2
1–3 years
4
4–7 years
5
8–11 years
10
12+ years
3

About this medicine

Type: medicine.

Questions owners ask

Can Azithromycin cause loss of appetite in cats?
26 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 7 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).

Loss of appetite with similar medicines

All reported side effects of Azithromycin in cats · Medicines most reported with loss of appetite