I gave it to my non sleeper around 2004.
Understand how utterly utterly desperate I was, I was the walking dead, surviving on 3-4 hours sleep a night, sometimes zero sleep for 48 hours.
He eventually slept a full night through aged 5 and at school full time.
I had no respite, no help, no end in sight, some days I actually wanted to die, lie down and never ever wake up.
Constant feeling nausea, dizzy, unable to think straight, blurred vision, numb hands and feet.
I gave a few doses to see if it helped, it did extend the day time nap from 20 minutes (on the days he would have a day time nap) to an hour.
Not worth much so never bothered with it after that.
When awake, day and night, the kid didn’t stop. My house was wrecked, he had zero sense of danger, couldn’t be left in a room alone because it would either end up completely destroyed or he would harm himself.
Stair gates, car seats, high chairs, shopping trolleys couldn’t hold him for more than a few seconds.
Life was absolute hell.
I still, to this day do not know how I survived those dark dark days. It was a living torture.
I literally would have done anything for even half an hour of quiet back then.