Skip Ribbon Commands
Skip to main content
Menu

Testosterone undecanoate

Drug Class: Commonly Known As: Category:
Androgens Adult

Testosterone undecanoate - What is it for

​Testosterone replacement is used to treat testosterone deficiency in males. It contains testosterone, a male hormone produced naturally in the body.

Testosterone undecanoate - Side Effects, Precautions, and Contraindications

What side effects can Testosterone undecanoate cause?

• Oily stools, abdominal pain
• Nausea, vomiting, diarrhoea
• Acne, itching skin
• Chills, muscle pain
• Changes in sexual desire (libido)
• Breast enlargement
• Fluid retention in the tissues usually marked by swelling of legs, ankle, lower legs
• Tingling sensation, headache


The symptoms of a drug allergy include one or more of the following:
• Swollen face/eyes/lips/tongue
• Difficulty in breathing
• Itchy skin rashes over your whole body
If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.

Before taking Testosterone undecanoate, what precautions must I follow?

Inform your healthcare professional if:
• You are allergic to this medication or any of the other ingredients of this medication.
• You have prostate or breast cancer.
• You have history of:
        - Liver or kidney problems
        - Heart conditions
        -  Uncontrolled blood pressure
        - Clotting disorders
        - Epilepsy (fits)
        - Migraine
        - Benign prostate hyperplasia (enlargement of prostate)
        - Sleep apnea (a sleep disorder)
        - Diabetes
• You are taking any other medications, including supplements, traditional medications and herbal remedies.

Pregnant women must avoid any contact with the medication, as it may cause the development of unwanted male characteristics in the developing baby. In the event of a contact, wash the area of contact as soon as possible with soap and water.

What food or medicine must I avoid when I take Testosterone undecanoate?

​Inform your doctor if you are taking oral anticoagulant (warfarin), corticosteroids, insulin or other anti-diabetic medications.

Testosterone undecanoate - Dosage and How to Use

How should Testosterone undecanoate be used?

​• Do not stop taking your medication without checking with your healthcare professional.
• This medication should be taken after food and swallowed whole without chewing. The medication is taken twice daily, with a larger dose preferably in the morning if you are taking an uneven number of capsules.

What should I do if I miss a dose?

​If you forget to take a dose, take it as soon as you remember. Then take your next dose at the usual time. Do not take two doses to make up for the missed dose.

What should I do if I overdose?

Testosterone undecanoate - Handling

How should I handle Testosterone undecanoate safely?

Testosterone undecanoate - Storage

How should I store Testosterone undecanoate?

Keep away from children;#Keep in a cool, dry place, away from direct sunlight;#

​Keep this medication away from pregnant women, breastfeeding women and children.

How should I dispose of Testosterone undecanoate safely?

​Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.

Testosterone undecanoate - Additional Information

  • Updated on Sunday, February 28, 2021
  • Article contributed by PSS National Medication Information Workgroup PSS National Medication Information Workgroup

    The information provided is not intended as medical advice. Terms of use. Information provided by SingHealth

    ​If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.

    Find Your Medicines