Thanks for the query to ATD for an opinion,
If your son has been a diagnosed case of adhd and anxiety disorder and presently lying on floor shaking and screaming, then ideally he has to be calmed first and you may give him calmpose 10mg tab orally stat. This shall calm him done and then you may take him to the neurophysician for a review of medication and dosages.
Calmpose is a restricted drug and available only on prescription. Hence it is advised that you may contact your physician or ER for the same.
The child should be under medical supervision at the moment.
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