Intended for use in men only. Must be injected intramuscularly & extremely slowly. Overreplacement should be avoided. Increased risk for the development of prostatic hyperplasia in older patients. Exclude prostatic carcinoma before starting therapy. Regular examinations of the prostate are recommended. Regularly monitor testosterone levels during treatment; Hb, haematocrit, liver function & blood lipid profile. Patients w/ acquired or inherited bleeding disorders; thrombophilia or risk factors for VTE; patients pre-disposed to oedema; HTN. Cases of benign & malignant liver tumours have been observed. May cause masculisation, accelerate growth, bone maturation & premature epiphyseal closure in childn. Pre-existing sleep apnoea may be potentiated. Concomitant use w/ coumarin-derived oral anticoagulants. Not for enhancing muscular development or increasing physical ability. Not for use in women, pregnant &/or breast feeding women; childn & adolescents. Elderly >65 yr.