This is a randomized, placebo-controlled, double-blinded study examining the use of
perioperative pregabalin in ureteroscopy with stent placement. Ureteroscopy is typically
performed for kidney or ureteral stones, but may be performed for other reasons such as for
the diagnosis and possible treatment of certain kinds of cancers. As part of the same
surgery, a ureteral stent is often placed. The surgery and the stent can cause discomfort,
and patients may receive narcotic pain medicine. In other surgeries, a single dose of
pregabalin, around one hour before surgery has been shown to decrease the need for pain
medication after the surgery. This work will test whether this is true in ureteroscopy by
giving eligible patients who agree to participate either pregabalin or a placebo shortly
before surgery then examining how much pain medication they use after surgery. A placebo is
an inactive medication. Neither the study participant nor the study staff will know who
received pregabalin and who received placebo until after the study is over. For completing
surveys, patients will receive compensation for their time in the form of gift certificates.