Welcome to Justanswer! I am Dr. Altman and happy to assist you both today!
Poppy seeds are not toxic to dogs unless ingested in large quantities. At this weight the concern of ingestion of poppy seed bread is that she may develop an upset stomach from the fat content in the poppy seeds.
Whole poppy seeds do contain small amounts of opium, which can lead to sedation, constipation, and irregularities with breathing. However, a 22lb dog would have to ingest A LOT of poppy seeds to experience these effects. This is so uncommon of a toxicity, that I cannot find any published toxic dose levels..suggesting that the toxic dose would have to be a lot and the ASPCA lists this as a non toxic item.
That being said, if you notice any behavioural abnormalities in your dog, you should contact your local emergency veterinarian.
Tonight you can elect to induce vomiting to remove the stomach upset that is bound to occur overnight with this ingestion. This can be attempted with 2 tsp of 3% hydrogen peroxide then laps around the house or giggling the belly to mix the peroxide in the stomach. Very likely she will not bring up all the bread but with this amount and her size there is a good chance she will have delayed gastric emptying. If she does not vomit:
- Pepcid (famotidine) 10 mg 1/2 tablet every 12 hours
- Since you are in a snow storm please do laps around your living room to aid in digestion of the bread.
- Tomorrow small more frequent meals of bland diet including white rice and lean boiled meat
- Please limit water intake to minimize risk of bloat with this amount of bread ingestion
Please let me know how else I can assist you both tonight
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