Effect of Oral Pregabalin on Spinal Neurotransmitters in Patients Undergoing Knee Replacement

"Group 1 (n=16, multi-dose pregabalin): patients receive pregabalin 150 mg orally 1 hour prior to surgery and then repeat 150 mg doses at 12 and 24 hours after initial dose.~Group 2 (n=16, single dose pregabalin): patients receive pregabalin 150 mg orally 1 hour prior to surgery, and then placebo doses at 12 and 24 hours after initial dose.~Group 3 (n=16, placebo): patients receive matching placebo at the same 3 time points as Groups 1 and 2."

Group 2 (n=16, single dose pregabalin): patients receive pregabalin 150 mg orally 1 hour prior to surgery, and then placebo doses at 12 and 24 hours after initial dose.

Group 3 (n=16, placebo): patients receive matching placebo at the same 3 time points as Groups 1 and 2.