"i work 7 days a week, 10-14 hours a day doing hard labor. my friend gave me a 100mg pill from citra (i think) one day and within 15 minutes all the pain was gone and i felt like my mood was increased x10. i worked harder than i usually do without one and had a very fast pace. i take one in the morning when i know it&#039;s gonna be a rough day and it helps me out through the whole day, if i notice i really need another one (which is rarely) i&#039;ll take half and feel better. i stop for a week or two to not build a big tolerance and haven&#039;t felt any negative side affects or having the need to want to just go pop some. the only noticeable side affect which didn&#039;t mind much was that my breathing was slightly off, not too much; most pills cause it."