Schedule-controlled responding was maintained under a fixed-ratio schedule in mice. Administered alone, clonidine, morphine and naloxone produced dose-related decreases in rates of responding, with clonidine about 100 times more potent than morphine which was about ten times more potent than naloxon
Interactions between naloxone and chlorpromazine on behavior under schedule control
โ Scribed by D. E. McMillan
- Publisher
- Springer
- Year
- 1971
- Tongue
- English
- Weight
- 357 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0033-3158
No coin nor oath required. For personal study only.
โฆ Synopsis
A multiple fixed-ratio, fixed-interval schedule of food presentation was used to study interactions between naloxone and chlorpromazine in the pigeon. Inactive doses of both drugs could combine to decrease the rate of responding under both schedule components. Inactive doses of naloxone could enhance the rate-decreasing effects of chlorpromazine and inactive doses of ehlorpromazine could enhance the rate-decreasing effects of naloxone. When both drugs decreased the rate, the combined effects of the drugs was greater than the sum of the ratedecreasing effects of the individual drugs. These data suggest that the rate-decreasing effects of naloxone and chtorpromazine are synergistic.
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