Androgen hormone (topical)

Androstanolone (dihydrotestosterone) (أندروستانولون)

Androstanolone, known as dihydrotestosterone, is a natural male hormone the body makes from testosterone. A gel form is used in some countries for male hormone deficiency and some conditions in men and boys under a specialist. Do not buy unregistered products.

What it is used for

  • Male hormone deficiency (hypogonadism) under an endocrinologist
  • Some sexual development problems or breast enlargement in men and boys, as a specialist decides

How it is used

  • Use it only as prescribed by your doctor
  • Apply the gel to clean, dry skin in the area your doctor chose, let it dry, then wash your hands
  • Cover the area with clothing and avoid it touching the skin of women and children

Possible side effects

  • Skin irritation where applied
  • Acne or oily skin
  • Increased body hair
  • Mood changes
  • A raised red blood cell count

Who should not use it

  • Prostate cancer or male breast cancer
  • Women, especially during pregnancy
  • Allergy to any ingredient of the gel

Before and while using it

  • Passing the gel on by skin contact can cause male features in women or early puberty in children
  • Regular blood tests for red blood cells and the prostate are needed
  • Do not use it for bodybuilding or performance; misuse of male hormones causes serious harm
  • Do not use unregistered products or products of unknown source
  • Tell your doctor if you have heart or liver disease or sleep apnoea

Medicine interactions

  • It can increase the effect of blood thinners such as warfarin
  • It can change blood sugar levels in people with diabetes
  • Steroids can increase fluid retention

Pregnancy and breastfeeding

  • Pregnant women must not use it or touch treated skin, as it can harm the baby
  • It is not used while breastfeeding

How to store it

  • Store at room temperature out of the reach of children

Get medical help straight away if

  • Your face, lips or tongue swell, or you find it hard to breathe.
  • You get a severe rash, blistering or peeling skin.
  • A side effect worries you or doesn’t go away: contact your doctor or pharmacist.

Questions about this medicine?

Talk to a doctor by video, or send your question by text.

Source: Standard international medicine references

This guide is general information and doesn’t replace advice from your doctor or pharmacist. Don’t start, stop or change a medicine without asking them, and always read the leaflet in the pack.