Depression

Treatment-Resistant Depression: When Antidepressants Aren't Working

By Jess, Mental Health Writer 12 July 2026 7 min read

If you’ve tried antidepressants and still feel unwell, it’s easy to conclude that nothing will help. That’s not true — it often means you need a more specialised approach. This is where a psychiatrist’s expertise matters most.

What “treatment-resistant” means

Depression is generally described as treatment-resistant when it hasn’t responded adequately to at least two different antidepressants, each taken at a proper dose for a long enough time. It’s more common than people realise, and — crucially — it does not mean your depression is untreatable. It means the standard first steps haven’t worked yet, and it’s time to look deeper.

Why a psychiatrist matters here

GPs manage most depression well, but treatment-resistant depression is exactly the situation where specialist psychiatric assessment adds value. A psychiatrist can:

  • Re-examine the diagnosis. Sometimes what looks like resistant depression is actually bipolar depression, a thyroid problem, undiagnosed ADHD, or another condition that changes the whole treatment plan.
  • Review what’s been tried. Was each medication at an adequate dose and duration? Were there interactions or adherence barriers?
  • Optimise medication. This may involve adjusting, switching or thoughtfully combining medications, or adding an augmenting agent — decisions best made by a specialist.
  • Add or align therapy. Evidence-based psychotherapy alongside medication improves outcomes.

Beyond medication

For severe or persistent treatment-resistant depression, psychiatrists can also consider specialist treatments such as transcranial magnetic stimulation (TMS) and, in specific severe cases, other interventions. These are delivered under specialist care and aren’t first-line, but they’re part of why “nothing works” is rarely the end of the story.

Getting specialist help

If your depression hasn’t lifted despite treatment, a specialist review can open up options you may not have known existed. A GP referral lets you access Medicare rebates for psychiatric consultations, and our online psychiatry service provides telehealth assessment Australia-wide. You can read more about our depression care or book an appointment.

Please hold onto this: treatment-resistant depression is a signal to change approach, not a verdict. Many people who felt stuck do get better with the right specialist input.

This article is general information, not medical advice. In a crisis, call Lifeline on 13 11 14 or 000.

Jess — Mental Health Writer

Jess is a mental health writer at Psychiatrists Australia, creating clear, compassionate content to help people understand mental health conditions and navigate their care options.

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