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. 2007 Oct 17;27(42):11179–11191. doi: 10.1523/JNEUROSCI.0989-07.2007

Table 1.

Reflex scores after intrathecal NGX424

NGX424 dose (μg) 0.1 0.3 1.0 3.0 10.0 30.0
Reflex score 0.00 ± 0.00 0.00 ± 0.00 0.00 ± 0.00 0.33 ± 0.21 1.67 ± 0.17 2.67 ± 0.22

Supraspinal effects of intrathecal NGX424 were monitored by checking corneal and whisker reflexes. Doses of 1.0 μ g or less appeared to have no effect on alertness, whereas higher doses seemed to have mild to severe sedative effects that are positively correlated with dose.