i just eat a pinch of the extract and take a hit about 5-10 minutes later so it all comes at once and lasts a REALLY long time, dunno about 45 minutes but it was for awhile. its ok that it doesnt last a full 45 min though cause tripping for that long gets kinda scary. dunno about you guys but iv had a couple trips where i wanted it to end. like one time i took the hit, laid back, then all of the sudden i was on the other side of the room and both my friends were over me going "SHHH" for like (to me) 10 minutes, and i thought i was screaming at the top of my lungs cause i couldnt feel my mouth and i heard something screaming and i was sitting inside my body just looking out through my eyes, like sitting in a shell/cave. but it wasnt me screaming, it was the music playing... ended up my friends only said "SHHH" for like 10 seconds, my mind kept repeating them saying it over and over. i just wanted to return to normal but i had no control over my body at all. i wouldnt want that for 45 min.