![Figure 2. Effect of intrathecal pretreatment with saline, atropine (ATR), or scopolamine (SCP) on the time course of the antiallodynic effect of intrathecal injection of 20 [micro sign]g clonidine. Data are mean +/− SD. *P < 0.05 versus respective pretreatment control. **P < 0.05 compared with the threshold in the saline group after injection of clonidine.](https://asa2.silverchair-cdn.com/asa2/content_public/journal/anesthesiology/90/2/10.1097_00000542-199902000-00027/2/27ff2.png?Expires=1717072691&Signature=1HDgR51TIHGn9SX9eEi5QZYWBThDJ2wmbJyCmsjBcaqXOKv2IKLuh-vj~8jcaYCnREmNfHLgvDoQjHl5UlqeGaPOJJCjaUvPaYuj8732O8oQoMpertZVl~W86eumpAdGF2FhmzUbMTSUzyxZNJMDm~R117kG2j0BQ3op-SbnTRcZY1xIY4cbA4mBHMeWZyWa5gcUaixeUOdx3RzSFY0WsZ3qSn6w0q4aZwrAN-8vOCdm4NgBicovWj2ZcEU9qy7n6Vs-XwSmGRyEhWJvEB8Tt~0i66BNxUoTB7S4ok7MUdz6LFl01QaL97l8~zZOEwqKQYKNuCGX6QS582ZNef3Vtw__&Key-Pair-Id=APKAIE5G5CRDK6RD3PGA)
Figure 2. Effect of intrathecal pretreatment with saline, atropine (ATR), or scopolamine (SCP) on the time course of the antiallodynic effect of intrathecal injection of 20 [micro sign]g clonidine. Data are mean +/− SD. *P < 0.05 versus respective pretreatment control. **P < 0.05 compared with the threshold in the saline group after injection of clonidine.
