I've done X and some was white but the "best" was brown. I'm clean and sober now thank God. It was in the 90's when I took X. All I know is it doesn't make sense that you were high in 10 min. X takes much longer so I assume it was cut with maybe pcp. I think pcp or angel dust can affect your brain. Also, some dealers in usa use embalming fluid which is what the pump dead people with at funeral homes. I do know from experience that X floods your brain with serotonin and then wipes out your brains ability to refill. The result is when you come down it can cause suicidal depression.

But I'm probably wasting my time here if you are willing to blindly take drugs with no knowledge of the source. A website that has a lot of info in drugs and a forum where you can post your question is Erowid. It's probably going to give you more answers than psych central.

Peace, tnt

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