• A Compilation of Serum Concentrations of 12 Antipsychotic Drugs in a Therapeutic Drug Monitoring Setting 

      Jonsson, Anna K.; Spigset, Olav; Reis, Margareta (Peer reviewed; Journal article, 2019)
      Background: No comprehensive collection of routine therapeutic drug monitoring data for antipsychotic drugs has been published. Methods: In this compilation, data on 12 antipsychotics are presented. The drugs included ...
    • Establishing Serum Reference Ranges for Antihypertensive Drugs 

      Rognstad, Stine; Søraas, Camilla Lund; Bergland, Ola Undrum; Høieggen, Aud; Strømmen, Magnus; Helland, Arne; Opdal, Mimi Stokke (Peer reviewed; Journal article, 2020)
      Background: Therapeutic drug monitoring (TDM) involves the measurement of serum drug concentrations to optimize pharmacotherapy. Traditionally, blood pressure measurements alone, and not TDM, have been used to evaluate ...
    • Oxycodone, Morphine, and Fentanyl in Patients with Chronic Pain: Proposal of Dose-Specific Concentration Ranges 

      Thaulow, Cecilie Hasselø; Helland, Arne; Kongsgaard, Ulf Erik; Høiseth, Gudrun (Peer reviewed; Journal article, 2023)
      Background: Interpreting opioid concentrations is challenging because of the lack of reference ranges. Therefore, the authors aimed to propose dose-specific concentration ranges in serum for oxycodone, morphine, and ...
    • Serum or Plasma for Quantification of Direct Oral Anticoagulants? 

      Aakerøy, Rachel; Stokes, Charlotte Lorentze; Tomic, Marija; Hegstad, Solfrid; Kristoffersen, Ann-Helen; Ellekjær, Hanne; Schjøtt, Jan Didrik; Spigset, Olav; Helland, Arne (Peer reviewed; Journal article, 2022)
      Background: Direct oral anticoagulants are increasingly replacing vitamin K antagonists for prevention of stroke in patients with atrial fibrillation, partly owing to the lack of a need for routine monitoring. Therapeutic ...