Lexapro (escitalopram) is a common first-choice medication for generalized anxiety disorder, and most people take it for at least 6 to 12 months. After symptoms improve, doctors typically recommend continuing treatment for another 6 to 12 months to prevent a relapse. The exact length of treatment depends on your history, symptom severity, and how you respond to the medication, so the final decision is always made with your prescribing clinician.
How Lexapro Works for Anxiety
Lexapro is a type of antidepressant called a selective serotonin reuptake inhibitor (SSRI). It increases the amount of serotonin available in the brain. Serotonin is a neurotransmitter that helps regulate mood, sleep, and anxiety.
This change does not happen overnight. The medication builds up gradually in your system. Most people notice some improvement in anxiety symptoms within 2 to 4 weeks. Full therapeutic benefits usually take 8 to 12 weeks. This is important to understand because some people stop the medication too early, thinking it is not working.
Anxiety is not simply a chemical imbalance that a pill “fixes.” The medication reduces the intensity of anxious thoughts and physical symptoms. This gives you room to develop coping skills and break patterns of avoidance. Many clinicians view the medication as a tool that works alongside therapy rather than a permanent replacement for it.
Typical Treatment Timeline for Anxiety
There is no single answer for how long you should take Lexapro. Treatment is individualized. However, guidelines and clinical practice describe a general structure.
The first phase is the acute phase. This is the first 8 to 12 weeks. The goal is to reduce symptoms enough that you can function in daily life. Doses are often started low and increased gradually to find what works for you.
The second phase is the continuation phase. Once your symptoms are well-controlled, your doctor will likely recommend staying on the same dose for at least 6 to 12 months. This period is critical. It allows your brain and body to stabilize. Stopping too early — right when you feel better — is the most common reason anxiety returns.
After that year, you and your doctor evaluate. If this was your first episode of anxiety, your doctor may suggest trying to taper off the medication. If you have had multiple episodes or a history of severe anxiety, longer treatment may be recommended. Some people stay on Lexapro for several years. Others take it for a shorter period and then stop successfully.
What Happens If You Stop Too Early?
Stopping Lexapro abruptly or too soon after symptoms improve carries real risks. The most immediate risk is discontinuation syndrome.
Discontinuation syndrome is a set of physical and emotional symptoms that occur when an SSRI is stopped suddenly. Symptoms can include dizziness, nausea, headache, irritability, and a feeling of “brain zaps” — brief electrical shock-like sensations. These are not dangerous, but they are unpleasant and can be frightening.
The bigger risk is relapse. If you stop the medication before your brain has adapted to a stable mood state, the anxiety can return. Some research suggests that people who continue treatment for at least 6 to 12 months after feeling better are less likely to have a relapse than those who stop sooner.
Never stop Lexapro without talking to your doctor first. Your clinician will guide you through a gradual taper. This reduces withdrawal symptoms and helps your brain adjust to lower serotonin levels slowly.
How to Know When It Is Time to Stop
You and your doctor should make this decision together. There is no blood test or brain scan that tells you when you are ready. The decision is based on clinical judgment and your personal situation.
Signs that you may be ready to consider stopping include:
- Your anxiety has been well-controlled for at least 6 to 12 months.
- You have developed coping strategies that work for you.
- Stressful life events have settled down.
- You feel stable in your relationships, work, and daily routines.
- You understand the warning signs of relapse and have a plan if they appear.
It is worth noting that “feeling better” is not the same as “being cured.” Many people feel so good on Lexapro that they forget how bad the anxiety was before. This is a positive sign, but it is also a reason to be cautious. Rushing to stop the medication because you feel fine can lead to a return of symptoms that were actually being controlled by the drug.
Working with Your Doctor to Taper Safely
A proper taper is slow and individualized. There is no standard schedule that fits everyone. Your doctor will design a plan based on your dose, how long you have been taking the medication, and how you respond to each reduction.
A common approach is to reduce the dose gradually over several weeks or months. For example, someone on 20 mg might step down to 15 mg, then 10 mg, then 5 mg, with several weeks at each level. This is not a rigid rule — some people need an even slower taper.
During the taper, pay attention to how you feel. Mild, temporary symptoms can be normal. But if anxiety returns or withdrawal symptoms are severe, your doctor may slow the taper or pause it for a while. There is no prize for stopping quickly. The goal is to stop without a relapse and without unnecessary suffering.
Some clinicians recommend combining therapy with the taper. Cognitive behavioral therapy (CBT) can help you manage anxious thoughts as the medication is reduced. This is a practical approach, not a guarantee. The evidence for CBT as an anxiety treatment is strong, and it makes sense to have these skills in place before the medication is gone.
Long-Term Use: Is It Safe?
Many people worry about staying on Lexapro for years. The evidence suggests that long-term use is generally safe for most people, but it is not without considerations.
Possible side effects of long-term use can include weight gain, decreased sexual desire or function, and emotional blunting — a sense of feeling less intensely, both positive and negative emotions. These effects do not happen for everyone. Some people take Lexapro for years with no significant problems.
If you experience side effects, talk to your doctor. There are options. Your dose can be adjusted. You might switch to a different SSRI or a different class of medication. You might find that a lower dose controls your anxiety well enough with fewer side effects.
There is no evidence that Lexapro causes permanent damage to the brain or body when taken as prescribed. The decision to stay on it long-term is a quality-of-life decision. You and your doctor weigh the benefits of anxiety control against the side effects you personally experience.
When Lexapro Is Not Working
Not everyone responds to Lexapro. If you have taken it at an adequate dose for at least 8 to 12 weeks without meaningful improvement, it may not be the right medication for you. This is not a personal failure. It is simply how medications work — different drugs affect different people differently.
Your doctor may suggest increasing the dose if you are on a low one. If you are already on a moderate or high dose, they may suggest switching to a different SSRI or another type of medication. Sertraline (Zoloft) and paroxetine (Paxil) are other SSRIs commonly used for anxiety. SNRIs like venlafaxine (Effexor) are also options.
If Lexapro is partially working, your doctor might add a second medication or recommend therapy to fill the gap. Never combine Lexapro with other medications or supplements without medical supervision. Serotonin syndrome is a rare but serious condition that can occur when serotonin levels become too high.
Frequently Asked Questions
Can I take Lexapro for anxiety forever?
Yes, some people take Lexapro for many years or indefinitely to manage chronic anxiety. The decision is based on how well the medication controls your symptoms and whether side effects are acceptable to you.
What happens if I stop Lexapro cold turkey?
Stopping abruptly can cause withdrawal symptoms like dizziness, nausea, irritability, and brain zaps. It also significantly increases the risk that your anxiety will return, so you should always taper off under a doctor’s guidance.
How long does Lexapro take to work for anxiety?
Most people notice initial improvement within 2 to 4 weeks, but full benefits typically take 8 to 12 weeks. It is important to stay on the medication consistently during this period before judging whether it works.
Will my anxiety come back after I stop Lexapro?
There is a real risk of relapse, especially if you stop too soon or taper too quickly. Continuing treatment for at least 6 to 12 months after symptoms improve lowers this risk significantly.

