Ethical dilemma: Is it ethical for doctors to prescribe placebo to patients? In this type of study the experimentation are determined by the study protocol, which means that ethical considerations are of great importance in the design of the study. Such ethical considerations can for example be that no patient should be denied to have an appropriate treatment due to his participation in the experiment (Bonita et al., 2006). However, the dilemma that will be considered in this paper is the ethics