I keep this old drug on hand for times when my anxiety and insomnia get out of hand.
So, I took 300 mg and finally got 6 hrs. sleep
The next afternoon I became so intensely dizzy that I thought I was going to faint or have a seizure.
I went to the ER and was given a shot of Benadryl and a script for Ambien, and was told not to take Thorazine again.
The head spinning dizziness lasted for 6+ hours.
It turns out that Thorazine gets stored in fat, and continues to be released into the blood stream long after it's taken orally.
THEN it happened again the NEXT afternoon.
I hadn't even taken any more Thorazine, it was still in my system.
I rode out this dizzy spell by lying on the floor for a few hours until it passed.