Neoplasia after Diphenhydramine in dogs
The FDA has received 20 reports of neoplasia in dogs after Diphenhydramine. That is 0.4% of all reports for this medicine, compared with 0.2% across reports for all dog medicines, so it is reported unusually often with this medicine.
20Reports
100%Marked serious
10%Recovered
30%Died or euthanised
–Typical onset
Sponsored
How the animals did
Problems reported at the same time
Age of the animals
About this medicine
Type: medicine.
Questions owners ask
- Can Diphenhydramine cause neoplasia in dogs?
- 20 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.
- 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).
Neoplasia with similar medicines
- Neoplasia after Polysulfated Glycosaminoglycan 36 reports · 0.7% of its reports
- Neoplasia after Tramadol 20 reports · 0.5% of its reports
All reported side effects of Diphenhydramine in dogs · Medicines most reported with neoplasia