Generic Name/API: Dihydrotestosterone


Dosage Forms & Strength & Pack Size:
2.5% gel 80g

Store in original package at 20°C to 25°C (68°F to 77°F).


What is dihydrotestosterone?
Dihydrotestosterone is a synthetic version of a hormone called testosterone. It is available as a 2.5% gel under the brand name Andactrim®, which is imported from abroad. It is used for children with hormone deficiencies. It works by correcting the hormone deficiency, either in a particular partof the body or affecting the body as a whole
How is it used?
Dihydrotestosterone 2.5% gel is for external use only. It should be applied over the required area of skin after washing. The gel should be left to dry for five minutes or so before putting on clothes.
1. Put on a pair of gloves
2. Gently squeeze the gel onto the up to the mark on the ruler illustrated below – as instructed onthe dispensing label.
3. Spread over the required area evenly
4. Leave for five minutes
5. Wipe the information sheet with a damp piece of kitchen paper ready for the next dose.
Remove the gloves and wash them in warm soapy water ready for the next dose.
Note: Dihydrotestosterone 2.5% gel should not be applied to any broken areas of skin.

Who should not use
Dihydrotestosterone 2.5% gel?
People who are hypersensitive to Dihydrotestosterone or its ingredients (Carbomer 934, Alcohol 95%) should discuss using this medicine with their doctor.
What are the side effects?
The following side effects are rare and are usually due to the dose of androgen being too high, so will disappear when the dosage is reduced.
• Mood swings and irritability
• Excessive energy or signs of being hyperactive
• Weight gain
• Extra hair growth
• Hoarseness
• Oily skin
• Acne
Dihydrotestosterone 2.5% gel and other medicines
Dihydrotestosterone is applied externally so it should not react with any other medicines.
Important information
• As this is a specialist treatment, GOSH or your local hospital will supply your child’s medicine.
• Keep medicines in a safe place where children cannot reach them.
• Keep the gel at room temperature, away from bright light or direct sunlight and away from heat. Do not store in the fridge.
• If the doctor decides that your child should stop using dihydrotestosterone, return any remaining gel to your pharmacist. Do not throw away.

Scroll to Top