Unknown dosages of pharma or any oral preparation ...makes me shudder
Always weigh out dosages for this stuff, or else there's the chance of getting mangled around like a rag doll in the arms of a hurricane.
I empathize with poads though. Many years back I made a similar mistake when working with pharma. It's very much a learning process. We're all human in those respects.
Set and setting, as much as this gets hammered ...is 3/4 of the deal for me. Outside is my preferred choice of environment, otherwise, if I plan to do it inside I make sure i have nice smells to accompany me along, light non verbal music either speaker or headphones, ambient lighting or darkness to help feather out the visions.
As has been said here quite a few times and i'll beat the dead horse once more .. "these substances when taken in sufficient dosage...are not toys, they are medicines, they work with what you give them."