My spouse and I decided to do a couple mushcaps. We have had access to them for a while so we knew that was the correct dosage for a smile. Well, my spouse had drank 4 cups of coffee an hour before we took them and he got a terrible speed buzz from them. It lasted for about half an hour. Then the yawns. I, however went on to see kalidiscopes and an emencse feeling of well being. I also recieve a small speed buzz, but for my body type this is normal. Just some tidbit about caffiene and its enhancing of the speed in the mushcap.