Tachycardia after Diphenhydramine in dogs
141 reports to the FDA describe tachycardia in dogs given Diphenhydramine. That is 3.0% of all reports for this medicine, compared with 0.5% across reports for all dog medicines, so it is reported unusually often with this medicine.
141Reports
90%Marked serious
20%Recovered
33%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 tachycardia in dogs?
- 141 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).
Tachycardia with similar medicines
- Tachycardia after Melarsomine (Immiticide) 385 reports · 1.7% of its reports
- Tachycardia after Polysulfated Glycosaminoglycan 41 reports · 0.8% of its reports
- Tachycardia after Butorphanol 192 reports · 4.3% of its reports
- Tachycardia after Cefpodoxime 44 reports · 1.1% of its reports
- Tachycardia after Tramadol 77 reports · 2.0% of its reports
- Tachycardia after Desoxycorticosterone Pivalate 33 reports · 1.0% of its reports
- Tachycardia after Propofol 143 reports · 4.7% of its reports
- Tachycardia after Isoflurane 135 reports · 4.9% of its reports
- Tachycardia after Cephalexin 21 reports · 0.8% of its reports
- Tachycardia after Atipamezole 123 reports · 4.6% of its reports
All reported side effects of Diphenhydramine in dogs · Medicines most reported with tachycardia