Testosterone Therapy (TRT) in Australia

🧬 What TRT actually is

Testosterone replacement therapy (TRT) treats hypogonadism — a genuine medical condition where the testes don't produce enough testosterone, due to a problem with the testes themselves, the pituitary gland, or the hypothalamus. It is not a treatment for normal age-related decline in testosterone (sometimes called "andropause") — Australian guidelines specifically exclude this from subsidised treatment.

• TGA status: Testosterone is a Schedule 4 (prescription-only) medicine. It can only be legally supplied with a valid prescription from a registered doctor.
• Approved forms in Australia: intramuscular injection (most common — e.g. long-acting depot injection every 10–14 weeks, or shorter-acting injection every 1–3 weeks), topical gel/cream.

✅ Am I likely to be eligible?

This is the part that surprises most people. PBS-subsidised testosterone criteria are strict — much stricter than many people expect from what they've read online:

• Total testosterone at or below 6 nmol/L on two separate morning blood tests, or
• Testosterone between 6–15 nmol/L with a raised luteinising hormone (LH) level, and
• The low testosterone must have a diagnosed medical cause (e.g. a pituitary or testicular problem) — not age, obesity, or general lifestyle factors.

PBS authority prescriptions also require a specialist (endocrinologist, urologist, or a Fellow of the Australasian Chapter of Sexual Health Medicine) to be named on the application — your GP alone cannot authorise long-term PBS-subsidised treatment without this.

🩸 What tests you'll need

• Two morning blood tests (testosterone is highest in the morning and can drop 20–40% by afternoon) — usually at least a few weeks apart
• Total testosterone plus ideally SHBG (sex hormone binding globulin) so free testosterone can be calculated — total alone can be misleading
• LH and FSH (luteinising and follicle-stimulating hormone) — helps identify the cause and whether you meet the 6–15 nmol/L exception pathway
• Baseline haematocrit, PSA, liver function, lipids — needed before starting, to have a comparison point for monitoring

Your GP can order the initial tests. Medicare rebates apply to the standard blood tests.

💰 Cost — PBS vs private pathway

• If you meet PBS criteria: around $7.70 (concession) to $25.00 (general) per prescription (2026 rates) — heavily subsidised.
• If you don't meet PBS criteria: some patients pursue private prescriptions or private telehealth clinics, which generally use less strict diagnostic thresholds. This is a legal pathway if a registered doctor is making the prescribing decision based on clinical judgement — but it is not subsidised. Costs are typically in the range of $1,000–$2,500+ per year for consultations, monitoring blood tests, and medication.
• Private health insurance generally does not cover TRT consultations or medication, though some extras policies may contribute toward pathology costs. Check with your insurer.

⚠️ Risks & ongoing monitoring

TRT is not a "set and forget" treatment. Once started, it typically requires monitoring for the rest of your life:

• Haematocrit (blood thickness): testosterone can raise red blood cell counts. Checked periodically; levels getting too high increase clotting risk and may need dose adjustment or a treatment pause.
• PSA (prostate): monitored periodically, particularly in older men.
• Fertility: TRT commonly suppresses natural sperm production — an important discussion if you may want children in future.
• Cardiovascular risk: has been debated in the research; part of why PBS criteria remain strict and why ongoing specialist input is built into the system.
• It is typically a long-term or lifelong commitment once started — stopping abruptly can cause symptoms to return and testosterone production doesn't always recover quickly.

👩‍⚕️ What to expect from your GP

A GP who takes your concerns seriously will usually:

• Ask about your symptoms and rule out common alternative explanations (sleep, thyroid, mental health, medications)
• Order the initial morning blood tests before considering any treatment discussion
• Explain honestly whether your results are likely to meet PBS criteria
• Refer to an endocrinologist if levels support a possible diagnosis, or if you want to explore treatment despite not meeting PBS criteria

It's not a rejection if your GP doesn't prescribe TRT on the spot — the blood tests and specialist involvement are part of how the system is designed to work, for your safety as much as for subsidy rules.