Hi there,
Thank you for choosing healthcaremagic.
I can understand your concern. It is good that you called poison control center.
I would like to know what type of antianxiety medication did he take. Since there are several types and they may have different action on our bodies.
Typically these cause excessive sleepiness but can also can cause decrease in blood pressure.
There are some type of medications that can cause decrease in blood sugar as well as decrease in blood pressure and
heart rate.
Make sure you count the remaining tablets in the bottle and ascertain how many are missing and how many he might have chewed on before you took them out of his mouth.
It would be safer and best for him to be taken to the ER for observation for a few hours if you think he chewed on more than one.
Till then donot give him any other medication, and observe if he is more drowsy, unable to wake up or seems to be confused or unable to understand you or his legs are unusually
cold or pale or if he starts to vomit excessively, then take him to the ER rightaway or call emergency medical services.
Hope this helps.
Best wishes to you.
Regards,
Dr. Sumeet.