My antidepressants aren’t working – what are my options?

You’ve taken the tablets. You’ve waited the weeks they told you to wait. You’ve gone back to your GP, tried a higher dose, maybe even switched to a different one entirely. And still something feels wrong. You’re not better. You might not even feel like yourself.

If this sounds familiar, you are not alone, and you are not imagining it. For a significant number of people in the UK, antidepressants simply don’t provide the relief they’re supposed to. That’s not a personal failing. It’s a clinical reality — one that medicine is increasingly finding better answers for.

This article explains why antidepressants stop working for some people, what the research actually shows, and what treatment options exist right now that you may not have been told about.

Why antidepressants don’t work for everyone

Antidepressants are the most commonly prescribed treatment for depression in the UK. For many people, they are genuinely helpful — particularly for mild to moderate depression. But they are not a universal solution.

The largest study ever conducted on antidepressant treatment, known as the STAR-D trial, found that after a first course of antidepressants, only around 28–32% of patients achieved full remission. That means roughly two thirds of people on antidepressants do not get completely better from their first prescription. When those who didn’t respond tried a second or third medication, the remission rates continued to fall.

This pattern is so common it has its own clinical name: treatment-resistant depression. It is defined as depression that has not responded adequately to at least two antidepressant trials at a therapeutic dose, taken for a sufficient duration. Far from being rare, treatment-resistant depression affects around a third of people diagnosed with depression in the UK.

There are several reasons why antidepressants fail to work for a given person.

Brain chemistry is individual

Antidepressants work by altering the balance of neurotransmitters like serotonin, noradrenaline, and dopamine. But depression is not a single, uniform condition. Different people have different underlying neurological profiles, and a medication that targets one pathway may simply not address what’s happening in your brain specifically.

Side effects make continuation impossible

Weight gain, emotional blunting, sexual dysfunction, fatigue, and nausea are among the most commonly reported antidepressant side effects. For many patients, the side effects become intolerable before the medication has had the chance to work — or they work well enough to mask symptoms but leave the person feeling less like themselves than before.

Tolerance and reduced response over time

Some people find that antidepressants work initially but gradually become less effective. This is sometimes called antidepressant tachyphylaxis, or informally, “poop-out.” Increasing the dose or switching to a new medication can only go so far.

The underlying cause hasn’t been addressed

In some cases, depression has a neurological basis that antidepressants simply aren’t designed to reach — particularly when certain regions of the brain involved in mood regulation are underactive and aren’t responding to chemical interventions.

“Just surviving, not living”

Many of the patients who come to Tranquil TMS describe a particular feeling that will resonate with anyone who has been through this: the sense of just surviving rather than truly living. The medication may have taken the worst edges off the lows, but it hasn’t brought anything back — no joy, no energy, no sense of being present in your own life.

Others describe feeling emotionally numb. The depression itself is blunted, but so is everything else. There’s nothing to look forward to. Relationships feel distant. Work is something to get through.

This is not what recovery is supposed to look like. If this is where you are, it is worth knowing that there are clinically proven alternatives — not as a last resort, but as a medically recognised next step.

What are the alternatives to antidepressants?

There are several routes worth exploring, depending on your situation. These are not mutually exclusive — in many cases they work best in combination.

• Repetitive Transcranial Magnetic Stimulation (rTMS). This is a non-invasive, medication-free treatment that works directly on the brain regions involved in mood regulation. It has been approved by NICE for the treatment of depression since 2015, and endorsed by the Royal College of Psychiatrists since 2017. It has none of the systemic side effects of medication, requires no anaesthetic, and you can drive yourself to and from each session.
• Psychological treatments. Cognitive behavioural treatment (CBT) and other structured psychological approaches have a strong evidence base for depression. If you haven’t yet had access to a quality course of CBT, this remains a valuable option. However, like antidepressants, psychological approaches don’t work for everyone — particularly when the depression is severe, longstanding, or has a neurological component.
• Lifestyle and adjunctive approaches. Exercise, sleep management, and dietary changes can support recovery. These are valuable, but for people with moderate to severe depression they are rarely sufficient on their own.
• Mood stabilisers and augmentation strategies. Your psychiatrist may recommend adding lithium, an atypical antipsychotic, or another agent to your existing antidepressant. These approaches can be effective for some patients but carry their own side effect burdens and require careful monitoring.
• Electroconvulsive treatment (ECT). ECT has a significant evidence base for severe, treatment-resistant depression. However, it requires a general anaesthetic and is associated with memory side effects.

What is rTMS and how does it work?

rTMS — repetitive Transcranial Magnetic Stimulation — uses carefully targeted magnetic pulses to stimulate specific areas of the brain. In depression, a region called the dorsolateral prefrontal cortex (DLPFC) is typically underactive. rTMS delivers repeated pulses to this area, encouraging the nerve cells there to become more active and better connected.

Unlike antidepressants, which work systemically throughout the body and brain, rTMS targets the precise neural circuits involved in mood. This is why it is particularly effective for people whose depression has not responded to medication — it addresses the problem from a different angle entirely.

A standard course of rTMS involves sessions of around 20–30 minutes, delivered five days a week over four to six weeks.  Fast treatments such as Theta bursts and Saint protocol are delivered over 1 to 2 weeks. You remain fully awake throughout. There is no sedation, no recovery period, and no impact on your ability to go about your normal daily life.

Crucially, you do not need to stop taking your current medication to begin rTMS. The two can work alongside each other without any interaction.

What does the evidence show?

The evidence for rTMS in treatment-resistant depression is robust and growing. The STAR-D data — showing a 28–32% response rate for antidepressants — stands in stark contrast to the response rates seen with rTMS.

In our own published research at Tranquil TMS, conducted across our patient cohort and published in the Journal of Psychiatry Depression & Anxiety in 2020, we recorded a response rate of 66.66% and a remission rate of 37.03%. Our most recent clinical audits show 66–76% of patients responding positively to the full course of rTMS treatment.

1 in 3 patients recover completely from symptoms

1 in 2 achieve >50% reduction in symptoms

Nationally and internationally, the picture is consistent. A 2014 multi-institutional study  (by names of authors please)found that the benefits of rTMS were durable over a 12-month follow-up period. And a 2023 study by (names of authors please) confirmed significant antidepressant and anxiolytic effects for patients with anxious depression treated with rTMS in routine clinical settings.

Is rTMS right for me?

rTMS is most effective for people who meet one or more of the following:

• You prefer a non-medication approach to treatment
• You have tried two or more antidepressants at therapeutic doses without adequate improvement
• You have experienced significant side effects from medication that have prevented you from continuing or reaching an effective dose
• You are currently on medication but feel it is not providing sufficient relief
• You have tried psychological treatments and found them helpful but not sufficient on their own

It is not suitable for everyone. People with certain metallic implants near the head, active seizure disorders, or certain implanted devices may not be eligible. A full clinical assessment is completed before any treatment begins to ensure it is appropriate for you individually.

What to do next

If your antidepressants aren’t working and you feel like you’ve exhausted your options within the NHS, you haven’t. rTMS is a clinically recognised, NICE-approved next step that is available privately — and in some cases, NHS funding can be explored.

At Tranquil TMS, we are the North West’s first and longest-running rTMS clinic, led by Senior Consultant Psychiatrists with over three decades of combined NHS psychiatric experience. Our clinic is based in Cheadle, South Manchester, with easy access from across Greater Manchester, Cheshire, Liverpool and beyond.

We offer a free initial telephone consultation with one of our Senior Consultant Psychiatrists — no referral required, no commitment. It’s a chance to talk through your situation, ask any questions, and find out whether rTMS might be the right next step for you.