TABLE 1

Mean ± S.E.M. (n) cocaine plasma levels (nanograms per milliliter) obtained 15 and 30 min after cocaine administration (10 mg/kg i.p.) in nonhandled and isolate male rats


Minutes postinjection

Nonhandled

Isolate
15 395 ± 53 (7) 441 ± 143 (5)
30
275 ± 49 (6)
248 ± 98 (5)