In pharmacotherapy trials involving drug-dependent individuals, medication compliance is a significant issue, as rates tend to be low and adherence to medication may predict improved outcomes (Baros et al, 2007; McRae et al, 2004; O'Brien et al, 1996; Somoza et al., 2010). However, methods commonly used to determine compliance may result in inaccurate measurement of adherence. In this study, we propose to assess the effectiveness and safety of the ID-Cap-M, a novel compliance measurement device, in a healthy population.