Theophylline side effects in dogs
176 reports sent to the FDA between 2011 and 2026 involve Theophylline in dogs. The most reported problems were vomiting, lethargy, loss of appetite. 51% were marked serious, and where it was recorded, signs eased after stopping the medicine in 100% of cases.
176Reports
51%Marked serious
2.3%Only medicine involved
30%Recovered
20%Died or euthanised
Sponsored
About this medicine
Type: medicine.
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 dog still getting fleas or heartworm), not about a side effect.
How soon problems started
Time from the first dose to the first sign, where both dates were reported (116 reports).
How the animals did
Breeds named most often
Popular breeds appear more often because there are more of them.
- Chihuahua 19 reports
- Pug 8 reports
- Maltese 8 reports
- German Pomeranian Spitz 7 reports
- Australian Shepherd Dog 7 reports
- Beagle 7 reports
- Labrador Retriever 7 reports
- Dachshund 7 reports
- West Highland White Terrier 6 reports
- Yorkshire Terrier 6 reports
Other medicines for dogs
Melarsomine (Immiticide)22,672 reports · 41% seriousPolysulfated Glycosaminoglycan5,465 reports · 33% seriousDiphenhydramine4,724 reports · 48% seriousButorphanol4,441 reports · 55% seriousCefpodoxime4,055 reports · 36% seriousTramadol3,768 reports · 47% seriousFlorfenicol + Mometasone + Terbinafine3,542 reports · 60% seriousDesoxycorticosterone Pivalate3,337 reports · 38% serious