Depression is one of the most treatable mental health conditions, with options ranging from talk therapy and medication to newer approaches like ketamine-based nasal sprays and structured exercise programs. Most people improve with some combination of these, though finding the right fit can take time. Here’s what the current evidence says about each major treatment category.
Talk Therapy
Two forms of therapy have the strongest track record for depression: cognitive behavioral therapy (CBT) and interpersonal therapy (IPT). CBT focuses on identifying and rewriting the thought patterns that feed depressive episodes. IPT zeroes in on relationship conflicts, grief, and life transitions that may be driving symptoms. Both typically involve 12 to 20 sessions of about 45 minutes each.
A study published in Psychological Medicine tracked patients for two years after completing either CBT or IPT. At the 24-month mark, roughly 46 to 66 percent of participants showed reliable improvement in their symptoms, depending on therapy type and session frequency. Remission rates (meaning symptoms dropped to a level considered “recovered”) were more modest, landing between 25 and 38 percent. Those numbers might sound low, but they reflect lasting change measured long after therapy ended, not just how people felt at the final session.
Twice-weekly sessions showed a trend toward better outcomes than once-weekly sessions, though the difference wasn’t statistically significant. If your schedule and budget allow it, more frequent sessions early on may help you gain traction faster.
Antidepressant Medication
The most commonly prescribed antidepressants fall into two classes. SSRIs (selective serotonin reuptake inhibitors) and SNRIs (serotonin-norepinephrine reuptake inhibitors) both work by increasing the availability of chemical messengers in the brain that regulate mood. SSRIs are typically tried first because they tend to have fewer side effects. Common side effects across both classes include dizziness, digestive issues, dry mouth, and blurred vision.
One thing that catches many people off guard is the timeline. Antidepressants generally take four to eight weeks before you feel a meaningful difference. Early side effects sometimes show up before the benefits do, which can be discouraging. If you don’t notice improvement after a full trial at an adequate dose, your prescriber will typically suggest switching to a different medication or adding a second one. It often takes more than one attempt to find the right match.
Combining medication with therapy tends to outperform either one alone, especially for moderate to severe depression. Medication can take the edge off enough to make therapy productive, while therapy builds skills that protect against relapse after you eventually taper off the medication.
Exercise as Treatment
Exercise is not just a vague “lifestyle tip” for depression. A large 2024 systematic review in The BMJ, pooling data from numerous randomized controlled trials, found that physical activity produced clinically meaningful reductions in depressive symptoms. The benefits scaled with intensity: more vigorous exercise led to greater improvement. Walking or jogging, yoga, and strength training all showed strong effects, outperforming other forms of exercise.
The review didn’t pinpoint a single magic number for weekly minutes, but the pattern was clear. Consistent, moderately intense activity several times a week produced real changes in mood, not just a temporary boost. For someone with mild to moderate depression, a structured exercise habit can rival the effect of medication. For more severe cases, it works well as an add-on to other treatments.
St. John’s Wort for Mild Depression
St. John’s Wort is a plant-based supplement that has been used for centuries in Europe and has a surprisingly solid evidence base. A meta-analysis of 14 clinical trials involving over 2,200 patients found that St. John’s Wort reduced depression scores and the proportion of patients still meeting criteria for depression, with fewer side effects than SSRIs.
The catch is that it works best for mild to moderate depression. It is not a substitute for prescription medication in severe cases. It also interacts dangerously with a long list of other drugs, including birth control pills, blood thinners, and many antidepressants themselves. If you take any other medication, you need to check for interactions before trying it. In some countries it’s available by prescription; in the U.S. it’s sold as an unregulated supplement, so quality can vary between brands.
Electroconvulsive Therapy
ECT carries a stigma that’s largely outdated. Modern ECT is performed under general anesthesia, takes about 10 minutes per session, and is one of the most effective treatments available for severe depression that hasn’t responded to medication. Remission rates run between 50 and 63 percent even in patients whose depression resisted multiple prior drug trials. Improvement can appear as early as after the third session, which makes it one of the fastest-acting options.
A typical course involves two to three sessions per week for several weeks. The most common side effect is short-term memory disruption around the time of treatment, which usually resolves. ECT is generally reserved for cases where other treatments have failed, where depression is life-threatening, or where a rapid response is critical.
Ketamine-Based Treatments
Esketamine, a nasal spray derived from the anesthetic ketamine, is FDA-approved for two specific situations: treatment-resistant depression (meaning at least two prior medications failed) and major depression with active suicidal thoughts. It works through a completely different brain pathway than traditional antidepressants and can produce noticeable improvement within hours to days rather than weeks.
The treatment is only available through a restricted program. You take it at a certified clinic, not at home, and you’re monitored for at least two hours after each dose because of potential side effects like dissociation, dizziness, and temporary blood pressure changes. It’s used alongside a standard oral antidepressant, not as a standalone treatment. Sessions are more frequent at first and then taper to roughly once every one to two weeks.
Choosing the Right Approach
The best starting point depends largely on severity. For mild depression, therapy alone or a combination of structured exercise and therapy is often enough. For moderate depression, adding medication to therapy improves the odds significantly. For severe or treatment-resistant depression, more intensive options like ECT or esketamine enter the picture.
What matters most is that you don’t stop at the first thing that doesn’t work. Depression treatment is iterative. The initial medication may not be the right one. The first therapist may not be the right fit. But the overall success rate, when people work through those adjustments, is high. Most people with depression eventually find a treatment or combination that brings meaningful relief.