Study On Bioavailability And Pharmacokinetics Of Various Doses Of Testosterone Administered With And Without Dutasteride

Inclusion criteria: * Are healthy. * Have a BMI within range of 19-32 kg/m2. * Have not taken dutasteride for one year, or finasteride for the past 3 months. * Have a screening PSA \< 2.0ng/mL. Exclusion criteria: * Have had or have breast or prostate cancer, sleep apnea, psychiatric illness, or any other clinically significant current condition. * Have a trigliceride level =500mg/dL. * Have abnormal thyroid or hormone levels. * Would donate more than 500 ML of blood over a 2 month period. * Physician does not think it is a good idea for you to participate in the trial. * Are unwilling to abstain from alcohol during the study. * Have a positive urine drug screen test. * Plan to change your smoking habits during the course of the trial. * Have Hepatitis C, Hepatitis B, or HIV. * Have a lab or ECG abnormality. * Have high or low blood pressure. * Have used of any investigational drug or device during the study or within 30 days prior to 1st dosing of study medication.