Depression is treated with medication, talk therapy, lifestyle changes, or a combination of these approaches. Most people respond well to a first-line treatment, but for those who don’t, more intensive options like brain stimulation therapies exist. The right treatment depends on how severe your symptoms are, how long they’ve lasted, and what you respond to individually.
How Antidepressant Medications Work
Antidepressants work by adjusting the balance of chemical messengers in the brain, primarily serotonin, norepinephrine, and dopamine. These chemicals play key roles in mood, motivation, and energy. When your brain reabsorbs them too quickly, the signals they carry get cut short. Antidepressants slow down that reabsorption so more of the chemical stays active in the brain for longer.
The most commonly prescribed type is the SSRI, which targets serotonin specifically. Familiar brand names include Prozac, Zoloft, and Lexapro. SNRIs take a broader approach, blocking the reabsorption of both serotonin and norepinephrine, which can help with energy and motivation on top of mood. A third option, bupropion (Wellbutrin), works on dopamine and norepinephrine instead. It’s sometimes chosen when serotonin-based medications cause unwanted side effects like weight gain or sexual dysfunction.
One thing that catches many people off guard is how long these medications take to work. You may notice small changes in sleep or appetite within the first week or two, but the full mood-lifting effect typically takes about six weeks for SSRIs. SNRIs and older antidepressant classes can start working a bit sooner, sometimes within two to four weeks. This lag is one of the hardest parts of starting treatment, and it’s the reason doctors ask you to stick with a medication for at least a month before deciding it isn’t working.
Talk Therapy
Psychotherapy is effective for depression on its own and becomes even more effective when paired with medication. The two best-studied forms are cognitive behavioral therapy (CBT) and interpersonal therapy (IPT).
CBT focuses on identifying thought patterns that reinforce depressive feelings, things like catastrophizing, all-or-nothing thinking, or automatically assuming the worst. A therapist helps you recognize these patterns in real time and practice replacing them with more realistic interpretations. It’s structured and typically runs 12 to 20 sessions, though some people continue longer. CBT also builds concrete skills like activity scheduling, where you deliberately plan small rewarding activities into your week to counteract the withdrawal that depression causes.
IPT takes a different angle. Instead of focusing on thought patterns, it zeroes in on relationship problems and life transitions that may be driving or worsening your depression. If a major loss, a conflict with someone close to you, or a big role change (like retirement or becoming a parent) is at the root of your symptoms, IPT helps you process that and develop better ways of communicating and connecting. Both therapies have strong evidence behind them, and the choice between them often comes down to what feels most relevant to your situation.
Exercise and Lifestyle Changes
Physical activity is one of the most underused treatments for depression, and the research behind it is stronger than most people realize. A large network meta-analysis published in The BMJ compared different types of exercise against usual care and found meaningful reductions in depression across nearly every form tested. Walking or jogging produced a moderate antidepressant effect. Yoga and strength training showed similar benefits. Dance had the largest effect of any exercise studied, nearly twice the impact of mixed aerobic workouts.
The practical takeaway is that the type of movement matters less than doing something consistently. If you enjoy walking, that works. If you’d rather lift weights or follow a yoga video, those work too. The challenge, of course, is that depression makes it hard to start anything. Beginning with very short sessions, even 10 or 15 minutes, and building from there is a realistic way in.
Other lifestyle factors that influence depression include sleep quality, alcohol use, and social connection. Poor sleep both worsens and is worsened by depression, creating a cycle that’s worth addressing early. Reducing alcohol, which is a depressant itself, often produces noticeable improvements within weeks.
When First-Line Treatments Don’t Work
Roughly one-third of people with depression don’t get adequate relief from their first medication or therapy. This is sometimes called treatment-resistant depression, generally defined as not responding to two or more adequate medication trials. At this point, doctors typically consider switching medications, combining two medications, or adding a non-drug therapy.
Transcranial magnetic stimulation (TMS) uses magnetic pulses directed at specific areas of the brain involved in mood regulation. It’s noninvasive, done in an office setting, and requires no anesthesia. A typical course runs five days a week for four to six weeks. About 50 to 60% of patients respond to TMS, and 30 to 40% achieve full remission.
Electroconvulsive therapy (ECT) is the most effective treatment available for severe, treatment-resistant depression, with response rates between 70 and 90%. It involves brief electrical stimulation of the brain under general anesthesia, typically two to three times per week for several weeks. ECT carries a reputation that’s largely outdated. Modern ECT uses much lower electrical doses than earlier versions, and the procedure itself takes only a few minutes. The most common side effect is temporary memory difficulty around the time of treatment.
Esketamine Nasal Spray
Esketamine (brand name Spravato) is a nasal spray approved by the FDA for treatment-resistant depression. Unlike traditional antidepressants that take weeks to build up, esketamine can produce noticeable mood improvements within hours to days. It works through a different brain pathway than standard antidepressants, targeting a receptor involved in neural plasticity, essentially helping the brain form new connections more easily.
In clinical trials, patients using esketamine alongside an oral antidepressant showed significantly greater improvement in depression scores after four weeks compared to those on an oral antidepressant alone. A longer-term study found that patients who continued esketamine relapsed at roughly half the rate of those switched to placebo: 27% versus 45%. The FDA originally approved esketamine only in combination with an oral antidepressant, but in 2025 it was also approved as a standalone treatment for treatment-resistant depression.
Esketamine is administered in a healthcare setting, not at home. You use the nasal spray device under supervision, then stay for monitoring for about two hours because of possible side effects like dizziness, dissociation, or sedation. The initial phase involves twice-weekly sessions for four weeks, followed by weekly or biweekly maintenance.
Combining Treatments
For moderate to severe depression, combination treatment, medication plus therapy, tends to outperform either one alone. Medication can take the edge off symptoms enough to make therapy more productive, while therapy builds skills that protect against relapse after medication is eventually tapered. People who receive both have lower relapse rates over the long term than those treated with medication alone.
Adding regular exercise to either medication or therapy further improves outcomes. There’s no single correct combination; what works best varies by person. Some people do well with therapy alone for mild depression, while others with severe symptoms need medication as a foundation before they can engage meaningfully in therapy or lifestyle changes. The important thing is that multiple effective options exist, and if the first approach doesn’t work, there are well-supported next steps to try.