The primary aims of this experiment are to determine if there are significant safety interactions between oral modafinil and intravenous methamphetamine. Safety will be assessed by measuring adverse events and cardiovascular responses of heart rate (HR), blood pressure (BP), and electrocardiogram (ECG) and stroke distance (ICG).
The purpose of this study is to assess the potential interactions between intravenous methamphetamine and oral Modafinil.