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Dr. Altman
Dr. Altman, Veterinarian
Category: Dog Veterinary
Satisfied Customers: 11105
Experience:  Practicing small animal veterinarian for 17 years.
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My dog ate 2 trifexis hartworm tablets and is now vomiting

Customer Question

my dog ate 2 trifexis hartworm tablets and is now vomiting and very lazydrooling
Submitted: 1 year ago.
Category: Dog Veterinary
Expert:  Dr. Altman replied 1 year ago.
Welcome! I am Dr. Altman, a licensed veterinarian and happy to answer your questions today.
Eating two tablets that is in his dosage range is very safe. The company that makes Trifexis - Elanco - has done a very good toxicity study to determine if giving this medication at 3 or even 5 times the normal dose is toxic and giving 3 doses at one time was shown to be safe for dogs therefore Goose should be perfectly fine with eating two of these tablets.
The most common side effects that Trifexis can cause such as vomiting or diarrhea are what you are seeing and likely related to the ingestion of two tablets versus just the one.
I will give you basic guidelines to treat his gi upset but if this continues overnight or progresses then please have him seen by a veterinarian. What you are seeing with the drooling is related to nausea (increased salivation, licking lips, eating grass) and should subside overnight but minimizing anything orally is key to allowing these signs to pass. If they are not resolving then injectable medications will be warranted to reduce his symptoms since anything orally will be vomited up and not have full effect.
1- Keep indoors to avoid eating grass/ leaves until morning and remove water if this is even increasing his nausea or repeating his vomiting
2- Offer a small amount of water (1-2 teaspoons hourly) for a few hours beginning in the morning
3- Start Pepcid (famotidine) 20mg 1 tablet every 12 hours OR prilosec (omeprazole) 40 mg (2 tablets) daily for the next 3 days with the second administration of water (crushed if needed)
4-If no vomiting, offer small amount of white rice and boiled boneless or ground chicken or ground beef. For example, one tablespoon hourly for a few hours then slowly start to increase the amount while reducing the frequency. Keep on this diet for several days then wean into regular diet.
5- If vomiting continues after doing the above, I would encourage having your family veterinarian perform an examination to determine the next step to getting Goose comfortable whether more aggressive care is warranted to control his vomiting.
Indications your dog should be seen by a veterinary er sooner include: sticky gums that are pale, yellow, blue, purple, temperature rectally >103.5, progressive lethargy with less responsiveness to you, vomiting or diarrhea that includes blood, resting respiratory rate (breaths per minute) >60, swollen abdomen.
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Expert:  Dr. Altman replied 1 year ago.
I am glad to see that you were able to view my responses last night. How is Goose doing today? Any further vomiting?
Please let me know if I can be of any further assistance to you both!
If you are satisfied with our chat please rate or accept so I may be compensated for my time. Thank you!