Genetic Variation in Organic Cation Transport 1 (OCT1) and Its Significance for Morphine Pharmacokinetics

The study was designed as an open, non-controlled drug trial, with scientists and participants blinded to the patients OCT1 status. Morphine will be given as a single dosis (0,15 mg/kg) at the end of the Surgery and later as boluses of 0,04mg/kg administrated by patient-controlled analgesia, (PCA). Blood samples with drug concentrations will be used to determine a difference in morphine AUC due to the patients OCT1 status. Questionnaire answers will be used to determine the effect of morphine due to the patients OCT1 status