There is no maximum time limit for taking Lexapro. Some people take it for six to nine months to get through a single depressive episode, while others stay on it for years or even a lifetime. The right duration depends on your diagnosis, how many episodes you’ve had, and how you respond when the dose is reduced.
Typical Treatment Length for a First Episode
If you’re being treated for a first episode of depression, clinical guidelines recommend staying on the same dose for 16 to 24 weeks after you start feeling better. That works out to roughly six to nine months of total treatment from the day you first took the medication. The logic is straightforward: feeling better doesn’t mean the episode is fully resolved. Stopping too early is one of the most common reasons people relapse.
It’s worth knowing that Lexapro doesn’t work instantly. For depression, doctors typically wait up to eight weeks to judge whether it’s effective. For generalized anxiety disorder, that window stretches to about 12 weeks. So a significant chunk of your treatment time is spent reaching full effect before the maintenance clock even starts.
When Long-Term or Lifelong Use Makes Sense
For people who’ve had two or more depressive episodes, guidelines recommend maintenance therapy lasting anywhere from six months to two years beyond remission. For those with three or more episodes, severe episodes, or episodes that were difficult to treat, indefinite use is a reasonable and common approach. Depression specialists increasingly view the condition less like an infection you treat once and more like a chronic illness that may need ongoing management.
One practical framework some clinicians use: take treatment one year at a time. At each yearly check-in, you and your prescriber can evaluate whether you still benefit from the medication, whether your life circumstances have changed, and whether a trial off the drug makes sense. There’s no pressure to commit to “forever” or to stop at an arbitrary date.
For generalized anxiety disorder, the FDA notes that GAD is recognized as a chronic condition. Lexapro’s prescribing information recommends periodic reassessment but doesn’t set an endpoint for treatment, which reflects the reality that many people with GAD benefit from staying on medication long-term.
What Happens If You Stop Too Soon
The numbers on relapse are striking. A large meta-analysis in Molecular Psychiatry found that people who stopped antidepressants after remission relapsed about 37 to 40% of the time, compared to roughly 20% for those who continued. That pattern held whether people had been stable for six months or over a year before discontinuing. In other words, even after a long stretch of feeling well, stopping the medication roughly doubles your chance of relapse compared to staying on it.
This doesn’t mean you can never stop. It means the decision should be deliberate, ideally made during a stable period in your life, and done gradually.
Risks of Staying On for Years
Long-term Lexapro use is generally well tolerated, but it’s not without trade-offs. The side effects most people notice, like sexual dysfunction, weight changes, or emotional blunting, can persist for as long as you take the medication. These are often the main reasons people want to stop.
One less obvious concern is bone health. SSRIs like Lexapro are linked to modest reductions in bone mineral density over time. A systematic review found that SSRI users had measurably lower bone density, particularly in the lumbar spine, with the effect most pronounced in people over 65. A large UK study of over 60,000 older patients found that SSRI use was associated with a 1.58 times higher risk of fractures compared to non-users. If you’re taking Lexapro long-term and you’re older or have other risk factors for osteoporosis, this is worth discussing with your doctor. Weight-bearing exercise, calcium, and vitamin D can help offset the risk.
How to Stop Safely When You’re Ready
Lexapro should not be stopped abruptly. Doing so can cause withdrawal symptoms: dizziness, irritability, nausea, brain zaps (brief electric-shock sensations), and flu-like feelings. These aren’t dangerous, but they can be deeply unpleasant and are sometimes mistaken for a relapse, which leads people to restart the medication unnecessarily.
Most guidelines suggest tapering over two to four weeks, but growing evidence suggests that’s often too fast, especially for people who’ve been on the drug for years. Slower tapers over several months, gradually reducing to very small doses before stopping completely, tend to produce fewer withdrawal symptoms. The reason is that the drug’s effect on brain chemistry doesn’t decrease in a straight line as you lower the dose. Small reductions at the low end of the dosing range can have outsized effects, so the final steps need to be the smallest.
If you’ve tried to stop before and found it difficult, a longer and more gradual taper is a reasonable next step. Some pharmacies can prepare custom low-dose tablets or liquid formulations to make tiny reductions easier.
Staying On vs. Coming Off: A Practical Framework
The decision isn’t really about how long you “can” stay on Lexapro. It’s about weighing two risks against each other: the risk of relapse if you stop versus the burden of side effects and potential long-term effects if you continue. For someone with a single mild episode who’s been stable for a year, a carefully managed taper is reasonable. For someone with recurrent severe depression who functions well on the medication, staying on indefinitely may be the safer and more practical choice.
Factors that favor longer (or indefinite) treatment include having three or more depressive episodes, a history of severe or hard-to-treat episodes, residual symptoms that never fully resolved, and a family history of recurrent depression. Factors that favor trying to stop include a single episode with a clear trigger, complete remission for over a year, strong coping skills and support systems, and side effects that meaningfully affect your quality of life.