The different
testosterone esters provide for different half lives. Esterization of the
testosterone molecules provides for a sustained (but non-linear) release of testosterone from the injection depot into the blood plasma.
While the intention of the mixed
testosterone esters in
Sustanon 250 is to provide more stable serum testosterone levels, a single long-ester testosterone, such as
testosterone cypionate or testosterone
enanthate, may actually provide more stable serum testosterone levels. It is the preferred method of
testosterone replacement in the UK as detailed in the British National Formulary.
USAGE
Testosterone is given as replacement therapy when natural
testosterone levels fall too low, causing symptoms such as those above. Natural
testosterone
levels fall with age and following surgical removal of the testicles
(castration). They may also fall due to decreased functioning of the
testicles (hypogonadism or eunuchoidism) caused by testicular disease,
or by decreased gonadotrophin production by the pituitary gland, as a
result of pituitary disease.
Testosterone replacement allows natural
testosterone levels to return to normal, thus relieving the symptoms of the deficiency.
Sustanon 250 injection is called a depot injection. It is injected slowly into the
muscle where it forms a reservoir of medicine. The
testosterone is gradually
released all the time from the reservoir into the bloodstream. The
injection is usually given once every two to three weeks, though the
frequency will depend on your individual
testosterone levels.
SIDE EFFECTS
Medicines and their possible
side effects can affect individual people in different ways. The following are some of the
side effects
that are known to be associated with this medicine. Because a side
effect is stated here, it does not mean that all people using this
medicine will experience that or any
side effect.
- Pain at injection site
-Headache
- Breast pain, enlargement of the breasts
- Salt and water retention
- Swelling caused by fluid retention
- Weight gain
- Hair loss
- Acne
- Depression
- Hostility
- Nervousness
- Prostate problems
- Persistent painful erection of the penis (priapism)
- Decreased sperm count
- Reduced volume of ejaculation
- Increased levels of red blood cells and haemoglobin in the blood
- Jaundice
- Liver tumours
- Premature sexual development when used in young boys
- Premature closure of the ends of bones, causing stunted growth when used in young boys
The
side effects
listed above may not include all of the side effects reported by the
drug's manufacturer. For more information about any other possible
risks associated with this medicine, please read the information
provided with the medicine or consult your doctor or pharmacist.