Impact of Changing the Dosing Regimen on the PK Profile of ODM-203

Inclusion Criteria: * Written informed consent * Able to speak, write and understand English * Body mass index of 18.0-32.0 * Weight 55-95 kg * Adequate method of contraception * Good state of health Exclusion Criteria: * Receipt of IMP in a clinical research study or donation/loss of \>400ml blood within previous 3 months or previously enrolled in this study * History of drug or alcohol abuse or positive drugs of abuse test or regular alcohol consumption or current smoker/user of nicotine replacement products * Positive drugs of abuse test * Positive hepatitis B, hepatitis C or HIV results * Donation/loss of \>400ml blood within previous 3 months * Poor compliance or inability to follow protocol requirements/instructions/restrictions. * Vulnerable subjects * Evidence of clinically relevant disease of any body system including relevant psychiatric disorders or conditions requiring regular concomitant medication * History of significant hypersensitivity, anaphylaxis, intolerance to drugs/food * Propensity to get headaches when refraining from caffeine containing beverages * Any abnormal laboratory value, vital signs, ECG parameter or physical examination interfering with the test results or causing a health risk for the subject or failure to satisfy the investigator of fitness to participate for any other reason.