Fig. 1 | Scientific Reports

Fig. 1

From: Using cocaine and apomorphine self-administration in rats to measure the pharmacokinetics of competitive dopamine receptor antagonists administered by different routes

Fig. 1

Cumulative number of apomorphine (A) or cocaine (C) self-administrations and the corresponding calculated level of apomorphine (B) or cocaine (D) at the time of each self-administration during three representative apomorphine or cocaine self-administration sessions. (-)Eticlopride (0.02 µmol/kg) was injected Intravenously (pink squares), Subcutaneously (yellow circles), or Intraperitoneally (blue triangles) approximately 2 h after starting the session. The unit doses of apomorphine and cocaine were 0.15 and 3 µmol/kg, respectively.

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