A Study in Men With Low Testosterone to Measure the Effects of Testosterone Solution on Testosterone Levels, Sex Drive and Energy

Inclusion Criteria: * Total testosterone level \<300 nanogram per deciliter (ng/dL) \[10.4 nanomole per Liter (nmol/L)\] at each of 2 screening visits * At least 1 symptom of testosterone deficiency, which must include decreased energy or decreased sexual drive * Prostate Specific Antigen (PSA) \<4 nanogram per milliliter (ng/ml) at screening Exclusion Criteria: * Sexual partner who is or becomes pregnant at any time during the study * Use of long-acting intramuscular (IM) testosterone undecanoate or testosterone pellets in the 6-month period prior to screening * Body Mass Index (BMI) \>37 kilogram per square meter (kg/m\^2) at screening * Severe lower urinary tract symptoms and/or significant prostate enlargement * Prolactin lab test result of \>30 ng/mL at screening * Hemoglobin A1c (HbA1c) \>11% at screening * Hematocrit ≥50% (\>54% at elevated altitude) at screening * Current use of any medications, herbal, and/or nutritional supplements that can interfere with testosterone * Dermatologic condition in underarm area that might interfere with testosterone absorption (for example, eczema) or be exacerbated by topical testosterone replacement therapy * Currently receiving treatment with cancer chemotherapy or antiandrogens * Chronic use of systemic glucocorticoids (use for \>14 days within the 3 months prior to screening); use of non-testosterone anabolic steroids within 12 months prior to screening * Competitive athletes involved in a sport in which they may be screened f…