see:
https://m.psychonautwiki.org/wiki/1,4-Butanediolnote: there are 2 GHB prodrugs and the other one is GBL. I have had absolute confirmation that this was 1,4 Butanediol.
I was given some for free after helping a friend out. It usually costs between $AUD 5-10 per millilitre.
I last remember consuming about 7 ml of diluted 1,4 BDO (a GHB prodrug that likely had a little GHB and water added) after trying a few smaller doses for safety's sake, prior to going to bed. I had also taken a little Meth the previous day. This was about 1:30 AM and the next thing I know, i awoke in the Hospital's ICU ward.
Apparently during the night, I started screaming, moaning and thrashing around. My housemate was so worried after I rolled out of bed and fell onto the floor that she called an ambulance and 4 paramedics arrived.
Apparently I became very combative, very aggressive and even violent (which I never am otherwise) so they decided, against best practise I believe, to sedate me with Droperidol then Ketamine and Midazolam, and with Morphine to intubate me.
I woke up around 5 PM that same day and found out what happened.
I was shocked as I have never reacted badly to GHB before (and on Meth) and still can't find any documented cases like mine despite searching the internet but I did read that high doses can cause hallucinations, confusion and agitation.
My advice is to always remember that some drugs may cause certain people adverse reactions. Maybe the residual effects of the Meth aggravated the situation but I doubt it.
The doctor said that I had a bad reaction to it and to stop taking all drugs, especially at my age (I'm over 60, he said that the cutoff point is 50). He also said that it could've caused a stroke or left me brain-dead due to oxygen deprivation. He added that I was very lucky.
The dose/response curve is too non-linear !
I'm just glad to be alive ! And, oh yes, they took all my GHB too but that's fine by me.
Note: When I mention GHB, I mean 1,4 BDO.