If you notice any signs of masculinisation (for instance lowering of the voice or increase in body or facial hair), consult your doctor immediately.
Treatment with male hormones like testosterone may increase the size of the prostate gland, especially in elderly men. Therefore your doctor will examine your prostate gland at regular intervals by digital rectal examination (DRE) and blood tests for prostate-specific antigen (PSA).
Additionally, at regular intervals, blood tests will be done to check the oxygen-carrying substance in your red blood cells (haemoglobin). In very rare cases the number of red blood cells will increase too much leading to complications.
The following blood checks should be carried out by your doctor before and during the treatment: testosterone blood level, full blood count.
Medical checks may also be necessary in some other conditions. Therefore, before you start using this medicine you must tell your doctor or pharmacist if you ever had, still have or are suspected to have:
Breast cancer which has spread to the bones;
Kidney or lung cancer;
High blood pressure;
Prostatic complaints, such as problems with passing urine;
Blood clotting problems – thrombophilia (an abnormality of blood coagulation that increases the risk of thrombosis – blood clots in blood vessels).
If you are suffering from severe heart, liver or kidney disease, treatment with Sustanon 250 may cause severe complications in the form of water retention in your body sometimes accompanied by (congestive) heart failure.
Tell your doctor if you have high blood pressure or if you are treated for high blood pressure as testosterone may cause a rise in blood pressure.
If you have sleep apnoea (temporarily stopping breathing during your sleep), it may get worse if you are using testosterone-containing products. Let your doctor know if you are worried about this. Extra supervision by your doctor may be necessary in case you are overweight or suffer from chronic lung disease.
During treatment you should also tell your doctor:
if you are a female-to-male transsexual. You should have special assessments, including psychiatric assessment, before treatment is started.
if you are a female-to-male transsexual and have a personal or family history of breast cancer and a personal history of endometrial cancer.