For some, no drug use includes caffeine which is a stimulant drug. Some will accept drugs such as codeine or morphine for medical reasons. Some followers of Straight Edge will not use Ny-Quil or Day-Quil because they contain alcohol. Those Straight Edgers who quit casual or illegal sex would not have one-night stands and will wait until they are in a committed relationship to have sex.
- "What is Straight Edge?". http://www.straightedge.com/whatissxe.html. Retrieved 23 January 2010.
- "Inside Straight Edge". National Geographic Society. 2008-05-14. http://channel.nationalgeographic.com/series/inside/3442/Overview. Retrieved 23 January 2010.