How long does sertraline take to work?

Sertraline works on a weeks-long clock, not a days-long one. The standard timeline: some early improvement may begin within 1 to 2 weeks - sleep, appetite, or energy often stir first - but the full antidepressant and anti-anxiety effect typically takes 4 to 6 weeks, sometimes longer at lower starting doses. Your doctor may start you low and increase after a week or more, which reduces side effects but stretches the timeline further. The cruel part to expect: side effects often arrive before benefits - nausea, headache, sleep changes, and sometimes a brief increase in anxiety in the first days - and the NHS says most ease after a couple of weeks as your body adjusts. So the first fortnight can feel like all cost, no reward. The rules that carry you through: take it daily at the same time (morning or evening, with or without food); do not judge the drug before 4 to 6 weeks at an adequate dose; and never stop suddenly because it seems to do nothing - if it genuinely is not working after a fair trial, your doctor can adjust the dose or switch, and there are many options. Worsening mood or thoughts of self-harm in the early weeks, especially under 25, mean call your doctor the same day. In crisis: call or text 988 in the US, or your local crisis line. Pymander is a free AI doctor, 24/7 by text, that can help you through the first weeks.