Praise be to Allaah.
There is nothing wrong with using medicine to increase growth
hormone for the one who is of weak build or noticeably short stature,
because that comes under the heading of medical treatment and remedies. It
has been proven that short stature is connected to a lack of growth hormone,
and this is not regarded as changing the creation of Allah; rather it is
treating a shortcoming and weakness so that the person may develop a regular
appearance like that of his peers.
On Wikipedia it says: Growth hormone helps in building the
human body (anabolism) by causing the bones and tissues to grow by means of
increased protein production. In addition to that, growth hormone also
contributes to breakdown of fats (lipolysis) and the formation of ketone
bodies. This hormone also increases the levels of sodium, potassium and
magnesium in the blood.
It also says: short stature is connected to a lack of growth
hormone. Short stature may respond to treatment with hGH (human growth
hormone) in the form of drugs. End quote.
Using this as a medical treatment depends on ascertaining
that it is free of harmful effects, because the Prophet (blessings and peace
of Allah be upon him) said: “There should be neither harming nor
Narrated by Ahmad, 2865; Ibn Maajah, 2341; classed as saheeh
by al-Albaani in Saheeh Ibn Maajah.
Hence it is essential to consult a specialized doctor.
For more information please see the answer to question no.
And Allah knows best.