Starting an antidepressant takes a certain amount of trust. You feel bad now, you want to feel better soon, and then you’re told to wait a few weeks to know if the medicine is even helping. That wait is hard. It helps to know what’s normal, what isn’t, and what we do if the first medication isn’t the right fit — because a slow start does not mean you’re out of options.

First, a word about what depression is

Everyone feels down sometimes. Major depression is different. It’s a low mood or loss of interest that lasts most of the day, nearly every day, for at least two weeks, along with changes in sleep, appetite, energy, concentration, or a sense of hope — enough to get in the way of daily life. The Diagnostic and Statistical Manual (DSM-5-TR), the guide clinicians use for diagnosis, describes this picture, but no one should score themselves off a checklist. Diagnosis happens in conversation with a clinician who listens to your whole story.

How long antidepressants take to work

Antidepressants do not work like a painkiller you feel in an hour. They gradually shift brain chemistry, and mood improvement usually lags behind. In our practice we tell people this: some early signs — sleeping a little better, a bit more energy — can show up in the first week or two, but a real lift in mood commonly takes about four to six weeks, and sometimes up to eight.

The American Psychiatric Association’s treatment guideline reflects this. It suggests giving a medication a fair trial and reassessing at roughly four to eight weeks: if there’s little to no improvement by then, that’s the point to look again at the diagnosis, check whether the dose and the daily habit of taking it are on track, consider other conditions, and adjust the plan. In other words, the timeline itself is part of the treatment — not a sign of failure.

A picture of what this can look like

Consider someone in a rural community who starts a medication, feels no different after ten days, and quietly concludes it isn’t working. They stop. What they didn’t know is that ten days is usually too early to judge, and stopping abruptly can bring its own uncomfortable effects. With a check-in at a few weeks — often a quick telehealth visit — that same person might have stayed the course and felt the benefit arrive around week five. This is a made-up example, but it’s a common one, and it’s exactly the moment a follow-up call is meant to catch.

What if the first one doesn’t work?

This is where honesty matters, so here it is plainly: the first medication is not guaranteed to be the one. The large STAR*D study — one of the most important real-world depression trials — found that only about one in three people reached full remission on their first antidepressant. That is not a discouraging fact once you understand the flip side: when the first didn’t work, changing to a different medication or adding a second treatment helped more people get better at each step.

STAR*D is also a lesson in reading numbers carefully. The often-quoted figure that about two-thirds of people eventually remit came from a best-case estimate, and later reanalyses have argued the true cumulative number is lower. We share that not to take away hope, but because you deserve straight information. The dependable takeaway is this: needing a second or third try is common, it is not a personal failing, and persistence with a clinician who adjusts the plan is what tends to win.

When a first medication falls short, the usual next moves are switching to another antidepressant, adding a second medication that works differently, or combining medication with therapy. Which path fits depends on you — your symptoms, side effects, other health conditions, and preferences. There is no single “right” drug for everyone, and we don’t chase one.

How we approach it at OhanaPsych

We start from lōkahi — balance across the connected parts of your life: body, mind and emotion, spirit, and ʻohana (family). Depression pulls those out of balance, and medication is one tool for restoring it, not the whole story. We also pay attention to your naʻau — your gut sense of how a medication is sitting with you — because your own read on side effects and mood is real data we use to steer the plan.

Practically, that means we don’t start a medication and disappear. We set expectations up front, schedule a follow-up before the four-to-eight-week decision point, and treat the first choice as a starting place we’re willing to revise. The therapeutic relationship — the pilina, or connection, between you and your provider — is part of what makes that adjustment work.

Getting care by telehealth

About 85% of our care is delivered by telehealth, and antidepressant management fits this format well. A first visit is a thorough conversation about your history, symptoms, and goals. Follow-ups — the check-ins that catch an early side effect or confirm the medicine is helping — work well by video from wherever you are in the islands. Some situations still call for in-person steps or lab work, and we’ll tell you plainly when that’s the case. Care is provided to patients located in Hawaiʻi, where our providers are licensed, and language assistance is available if you need it.

When to seek help now

Some feelings can’t wait for a scheduled visit. If you have thoughts of harming yourself or of not wanting to be here, or you’re worried about someone who does, reach out right away — you don’t have to explain it perfectly, and you won’t be judged.

• 988 Suicide & Crisis Lifeline: call or text 988, or chat at 988lifeline.org (available 24/7).
• Hawaiʻi CARES 988: call or text 988; from outside the islands, 808-832-3100 or toll-free 800-753-6879. Free, 24/7 crisis, mental health, and substance-use support across Hawaiʻi.
• In a life-threatening emergency, call 911.

Also don’t wait for your next appointment if you have a bad reaction to a medication or want to stop — call us first so we can help you do it safely rather than stopping on your own.

Medically reviewed by George Mackel, MSN, APRN, NP-C, PMHNP-BC, CARN-AP
President & Owner, OhanaPsych

Date published: July 6, 2026 · Last reviewed: July 6, 2026 · Citations verified: July 6, 2026

This article is general health education from OhanaPsych. It is not a substitute for a personal evaluation by a qualified clinician who knows your situation, and reading it does not create a provider–patient relationship. If you think you may have a medical or mental health condition, reach out to us or another licensed provider. In an emergency, call 911.

References

American Psychiatric Association. (2010). Practice guideline for the treatment of patients with major depressive disorder (3rd ed.). https://psychiatryonline.org/pb/assets/raw/sitewide/practice_guidelines/guidelines/mdd.pdf

American Psychiatric Association. (2022). Diagnostic and statistical manual of mental disorders (5th ed., text rev.). https://doi.org/10.1176/appi.books.9780890425787

Rush, A. J., Trivedi, M. H., Wisniewski, S. R., Nierenberg, A. A., Stewart, J. W., Warden, D., … Fava, M. (2006). Acute and longer-term outcomes in depressed outpatients requiring one or several treatment steps: A STAR*D report. American Journal of Psychiatry, 163(11), 1905–1917. https://doi.org/10.1176/ajp.2006.163.11.1905

Hawaiʻi CARES 988. (n.d.). Get help. Hawaiʻi State Department of Health. Retrieved July 6, 2026, from https://hicares.hawaii.gov/get-help/