Collapse after Diphenhydramine in dogs
230 reports to the FDA describe collapse in dogs given Diphenhydramine. That is 4.9% of all reports for this medicine, compared with 0.9% across reports for all dog medicines, so it is reported unusually often with this medicine.
230Reports
93%Marked serious
25%Recovered
30%Died or euthanised
Same dayTypical onset
Sponsored
How soon it started
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 collapse in dogs?
- 230 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 the same day 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).
Collapse with similar medicines
- Collapse after Melarsomine (Immiticide) 679 reports · 3.0% of its reports
- Collapse after Polysulfated Glycosaminoglycan 129 reports · 2.4% of its reports
- Collapse after Butorphanol 103 reports · 2.3% of its reports
- Collapse after Cefpodoxime 71 reports · 1.8% of its reports
- Collapse after Tramadol 110 reports · 2.9% of its reports
- Collapse after Florfenicol + Mometasone + Terbinafine 35 reports · 1.0% of its reports
- Collapse after Desoxycorticosterone Pivalate 98 reports · 2.9% of its reports
- Collapse after Propofol 46 reports · 1.5% of its reports
- Collapse after Isoflurane 48 reports · 1.7% of its reports
- Collapse after Cephalexin 34 reports · 1.3% of its reports
All reported side effects of Diphenhydramine in dogs · Medicines most reported with collapse