Welcome! I am Dr. Altman, a licensed veterinarian and happy to answer your questions today.
Luckily it sounds like you were very proactive in removing the chocolate from his system and he should be just fine but below are the clinical signs to monitor for with chocolate intake along with a chocolate scale to enter his weight and the amount ingested so you have an idea of risks if there is anything still in his stomach
This article lists signs associated with chocolate toxicity which can vary depending on the amount ingested:
Mild signs include vomiting and diarrhea
Moderate signs include restlessness, hyperactivity, muscle
twitching, increased urination and possibly excessive panting.
More severe signs include increased heart rate and blood pressure levels may also be increased. Seizure activity may occur in most severe cases.
Here is the link to the chocolate toxicity meter:
With him vomiting a large portion of what was likely ingested there is a high probability that you will not see any ill effects at all but I definitely agree that knowing what to monitor for in case there are any complications from the ingestion.
Please let me know if you have any additional questions or concerns I can assist with today!
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