Compounds | ED50 (95% Confidence Limits) | ED50 i.c.v./ED50 i.c. | |
---|---|---|---|
i.c.v. | i.c. | ||
pmol/rat | |||
β-Endorphin | 3.5 | 0.8 | 4.37 |
(1.66–7.35) | (0.62–1.024) | ||
DAGO | 6.8 | 9.0 | 0.75 |
(2.26–20.4) | (2.4–33) | ||
DADLE | 75.0 | 45.0 | 1.50 |
(36–144) | (16–126) | ||
Deltorphin II | 120.0 | 0.25 | 545.0 |
(40–360) | (0.08–0.775) | ||
DPDPE | 1100 | 7.0 | 157.0 |
(458–2640) | (1.66–29.4) |