{"title":"A dose-response comparison between methadone and morphine self-administration.","authors":"T E Werner, S G Smith, W M Davis","doi":"10.1007/BF00735825","DOIUrl":null,"url":null,"abstract":"<p><p>Rats were allowed to self-administer a solution of 0.9% saline, or 0.01, 0.03, 0.1 or 0.3 mg/kg/infusion of methadone hydrochloride or 0.03, 0.1 or 0.3 mg/kg/infusion of morphine sulfate. The results showed that number of infusions taken was an inverse function of unit dose, while amount of drug self-administered (mg/kg) was a direct function of unit dose. The data also indicated that more morphine than methadone was self-administered.</p>","PeriodicalId":20715,"journal":{"name":"Psychopharmacologia","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1976-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/BF00735825","citationCount":"15","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Psychopharmacologia","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/BF00735825","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 15
Abstract
Rats were allowed to self-administer a solution of 0.9% saline, or 0.01, 0.03, 0.1 or 0.3 mg/kg/infusion of methadone hydrochloride or 0.03, 0.1 or 0.3 mg/kg/infusion of morphine sulfate. The results showed that number of infusions taken was an inverse function of unit dose, while amount of drug self-administered (mg/kg) was a direct function of unit dose. The data also indicated that more morphine than methadone was self-administered.
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