Speaking from personal experience I am of the opinion that LSD is a pro-drug.Many moons ago when I aspired to the DMT experience but had absolutely no way of obtaining the said item, I injected LSD intravenously in an attempt to reproduce an experience akin to a psychedelic blast-off.My guestimate of the dose would be 80-100mcg.
There was absolutely NO discernible rush at all.However, I did begin to feel it after about 10 minutes and the time to the peak took approximately 90 minutes as opposed to almost 180 minutes and the peak experience was not noticeably more impressive than taking the same dose orally.Once the peak was reached the tempo of the trip was identical to the oral route.
This suggests excellent oral bioavailability for LSD.
There was absolutely NO discernible rush at all.However, I did begin to feel it after about 10 minutes and the time to the peak took approximately 90 minutes as opposed to almost 180 minutes and the peak experience was not noticeably more impressive than taking the same dose orally.Once the peak was reached the tempo of the trip was identical to the oral route.
This suggests excellent oral bioavailability for LSD.