The overall aim of this thesis was to explore aspects of the subjective views and experiences of doctors as prescribers, focusing on responsibility for and factors of importance in achieving appropriate prescribing. To provide insights into the prescriber’s perspective the study designs were qualitative. In the first studies secondary care doctors’ perceptions of appropriate prescribing and influences in prescribing were investigated in interviews. The doctors perceived that appropriate prescribing needed continuous revision. From the perspective of the prescribers the definition of prescribing could be rephrased as: “the outcome of the recurring processes of decision making that maximises net individual health gains within society’s available resources”. Among the influences in prescribing were guidelines, colleagues and therapeutic traditions. In the subsequent studies the experiences of exchanging information regarding a patient’s drugs in an electronic patient medical record (e-PMR) shared between primary and secondary care and views of responsibility was explored, using focus groups with both primary and secondary care doctors. Considering the gap between health care levels, doctors’ views of responsibility in prescribing and exchange of information are of concern. The doctors expressed how they assume information to be in the e-PMR and active information transfer has decreased. On the other hand, they experienced an information overload in the e-PMR system. There is a need for improved and structured communication between health-care givers. Taking responsibility to review all the patient’s medications was perceived as important, but described as still not done. Lack of responsibility taken was often due to acts of omission, i.e. that doctors did not make needed changes to the list of medications due to different barriers. The barriers rested both with individual doctors and the system, but to ensure solutions that are realisable in practise, perspectives of the doctors need to be taken into consideration when overcoming those barriers.