Vomiting after Theophylline in dogs

The FDA has received 53 reports of vomiting in dogs after Theophylline. That is 30% of all reports for this medicine, compared with 28% across reports for all dog medicines.

53Reports
47%Marked serious
43%Recovered
25%Died or euthanised
3 daysTypical onset
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How soon it started

Same day
13 35%
1–2 days
5 14%
3–7 days
2 5.4%
1–4 weeks
1 2.7%
Over a month
16 43%

How the animals did

Recovered
23 43%
Still unwell when reported
11 21%
Died
4 7.5%
Euthanised
9 17%
Not known
6 11%

Problems reported at the same time

19 36%
13 25%
Kidney problems
12 23%
Diarrhea
9 17%
Weight loss
9 17%
Liver problems
8 15%

Age of the animals

Under 1 year
2
1–3 years
2
4–7 years
5
8–11 years
15
12+ years
29

About this medicine

Type: medicine.

Questions owners ask

Can Theophylline cause vomiting in dogs?
53 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 3 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).

Vomiting with similar medicines

All reported side effects of Theophylline in dogs · Medicines most reported with vomiting