What Happens When You Stop Taking Lamotrigine for Bipolar Disorder

Introduction

You’ve been taking lamotrigine for months—maybe years. It’s helped stabilize your moods, pulled you out of depressive episodes, and given you a sense of control over a condition that once felt unmanageable. But lately, you’ve been wondering: Do I still need this? Perhaps you’re feeling better than you have in a long time. Maybe the side effects are starting to wear on you. Or you’ve heard stories from others who stopped their medication and were just fine.

Here’s the reality: stopping lamotrigine for bipolar disorder is one of the most consequential decisions you can make about your mental health—and doing it wrong can be dangerous, even life-threatening.

This article will walk you through exactly what happens when you stop taking lamotrigine, the risks you need to understand, the safe way to discontinue if you and your doctor decide it’s right for you, and the common mistakes that land people in the hospital. What Happens When You Stop Taking Lamotrigine for Bipolar Disorder. By the end, you’ll have a clear roadmap for navigating this complex decision—and a healthy respect for why you should never go it alone.

What Is Lamotrigine and Why Does It Matter for Bipolar Disorder?

Lamotrigine—sold under brand names like Lamictal—is a medication that straddles two worlds. Originally developed as an anticonvulsant for epilepsy, it was later found to have powerful mood-stabilizing properties for bipolar disorder. Today, it’s one of the most widely prescribed maintenance treatments for bipolar disorder, particularly valued for its effectiveness in preventing depressive episodes.

Unlike some other mood stabilizers, lamotrigine doesn’t work immediately. It requires a careful, slow titration (dose escalation) over weeks to reach a therapeutic level, largely because rushing the process can trigger a severe and potentially fatal skin reaction called Stevens-Johnson syndrome. For this reason, starting and stopping lamotrigine both require extreme caution.

Why Bipolar Patients Take Lamotrigine

For people with bipolar disorder, lamotrigine serves several critical functions:

Preventing depressive episodes: This is where lamotrigine shines. Research shows it’s particularly effective at delaying and reducing the recurrence of bipolar depression.
Stabilizing mood over the long term: Maintenance therapy with lamotrigine has been shown to prevent recurrence of mood episodes for up to 24 months in clinically stable patients.
Delaying the time to next episode: Studies have found that lamotrigine is more effective than placebo at minimizing recurrence of bipolar depression at one year.

How Lamotrigine Works in the Brain

Lamotrigine stabilizes mood by modulating glutamate—a excitatory neurotransmitter in the brain. By dampening excessive glutamate activity, it helps prevent the neural “overload” that can trigger mood episodes. This mechanism is different from lithium or valproate, which is why lamotrigine is often used when other mood stabilizers haven’t worked or aren’t well tolerated.What Happens When You Stop Taking Lamotrigine for Bipolar Disorder.

The drug has a relatively long half-life, meaning it stays in your system for a while. This is part of why withdrawal symptoms don’t always appear immediately—and why the tapering process needs to be so gradual.

What Happens When You Stop Taking Lamotrigine?

The short answer: a lot can happen, and most of it isn’t good.

When you stop taking lamotrigine—especially if you stop suddenly—your brain is suddenly deprived of a medication it has adapted to. The result is a cascade of potential consequences that range from unpleasant to dangerous.

1. Withdrawal Symptoms (Physical and Emotional)

Stopping lamotrigine abruptly throws your brain chemistry out of balance. The drug has been modulating neurotransmitter activity, and without it, your brain struggles to regulate itself.

Common withdrawal symptoms include:

Headaches
Dizziness and balance problems
Nausea or vomiting
Flu-like symptoms
Insomnia
Fatigue
Tingling sensations

But the emotional symptoms can be even more concerning:

Anxiety
Depression
Irritability and anger
Severe mood swings
Concentration problems
In some cases, suicidal thoughts

These symptoms don’t just make you feel bad—they can destabilize you to the point where daily functioning becomes impossible.

2. Risk of Seizures

Lamotrigine is an anticonvulsant, and stopping it abruptly can trigger seizures—even in people without epilepsy. This isn’t theoretical. In clinical trials of adults with bipolar disorder, two patients experienced seizures shortly after abruptly withdrawing from lamotrigine.

The FDA specifically warns that lamotrigine “should not be abruptly discontinued” due to the possibility of increasing seizure frequency. For bipolar patients, this risk exists even if you’ve never had a seizure in your life.

3. Mood Episode Relapse

This is the big one. Lamotrigine is doing real work keeping your mood stable. Take it away, and the protection goes with it.What Happens When You Stop Taking Lamotrigine for Bipolar Disorder.

Withdrawal of maintenance therapy dramatically increases relapse risk, especially within the first six months following discontinuation. According to the National Institute of Mental Health, the relapse rate in noncompliant patients (those who stop taking their medication) exceeds 90%.

That’s not a typo. Nine out of ten people who stop taking their bipolar medication experience a relapse.

A systematic review and meta-analysis published in 2020 found that discontinuing medications for one month or more significantly increased recurrence risk. The protection that lamotrigine provides against depressive episodes in particular vanishes when you stop.What Happens When You Stop Taking Lamotrigine for Bipolar Disorder.

However, it’s worth noting that about 47.3% of patients who discontinued drugs for six months did not experience recurrence. This means some people can stop without immediate relapse—but you have no way of knowing which group you’ll fall into.

4. The Kindling Effect: Each Relapse Makes Future Episodes Worse

Here’s something many patients don’t realize: every mood episode you experience can make future episodes more likely and more severe. This is sometimes called the “kindling” effect—each episode “kindles” or sensitizes the brain to future episodes.

When you stop lamotrigine and relapse into depression or mania, you’re not just dealing with a temporary setback. You may be making your underlying condition harder to treat in the long run.

5. Worsening of Psychiatric Symptoms

Beyond full-blown mood episodes, stopping lamotrigine can cause a general deterioration in your psychiatric status. The FDA warns that discontinuing the drug can lead to “new or worsening mental problems”.

Patients have reported:

Emergence or worsening of obsessive-compulsive symptoms (which often resolve when lamotrigine is restarted)
Increased anxiety and irritability
Return of depressive symptoms that had been well-controlled

6. Loss of Hard-Won Progress

Think about how long it took to get stable. The slow titration. The trial and error with dosages. The weeks and months of waiting for the medication to reach full effect.

Stopping lamotrigine can undo all of that progress in a matter of days or weeks. And if you need to restart the medication later, you can’t just jump back to your previous dose. You have to start the entire titration process over again—from the beginning.

7. The “Rebound” Effect

Some patients experience what’s called a “rebound” effect when stopping lamotrigine—their symptoms return with greater intensity than before they started the medication. This is particularly concerning for depressive symptoms, which lamotrigine is especially good at preventing.

The Right Way to Stop Lamotrigine

If you and your doctor decide that stopping lamotrigine is the right choice, there is a safe way to do it. It is not quick. It is not simple. And it requires close medical supervision.

When Can You Consider Stopping?

According to the American Academy of Psychiatry, maintenance therapy for bipolar disorder should continue for at least two years after the last mood episode. Some individuals may require lifelong treatment when the benefits outweigh the risks.

The decision to discontinue after two years should be made in consultation with a mental health specialist. This is not a decision you make on your own—and it’s not one a general practitioner should make without psychiatric input.

The Tapering Protocol

If discontinuation is deemed appropriate, lamotrigine should be tapered gradually, not stopped abruptly.

Here’s what the evidence recommends:

FDA recommendation: The dose should be tapered over a period of at least two weeks, with approximately a 50% reduction per week.
American Academy of Neurology recommendation: A more gradual taper over 2-4 weeks, with a reduction of approximately 25% every 1-2 weeks.
Clinical practice guidance: Many doctors recommend starting with a reduction of 1/8 to 1/4 of the current dose, with intervals of 2 to 8 weeks between each reduction. The longer the interval between reductions, the safer the process.

A sample tapering schedule might look like:

Reduce to half the current dose. Observe for two months.
If stable, reduce to every other day at half dose. Observe for another two months.
If still stable, discontinue completely.

But here’s the critical caveat: If you experience any relapse or symptom breakthrough during the tapering process, you should immediately stop the taper and return to your previous dose.

What If You’ve Already Stopped?

If you’ve already stopped taking lamotrigine—especially if you stopped abruptly—do not restart it on your own.

Here’s why: If lamotrigine is discontinued for more than five days and you need to restart it, you must begin with the full titration schedule from the beginning, rather than resuming your previous dose. This is to minimize the risk of serious rash, including Stevens-Johnson syndrome.What Happens When You Stop Taking Lamotrigine for Bipolar Disorder.

Jumping back to a higher dose after a gap can trigger this life-threatening reaction. This is not a risk worth taking.

Common Mistakes to Avoid

Mistake #1: Stopping Suddenly Because You Feel Better

This is the most common—and most dangerous—mistake. Bipolar disorder is a chronic condition. Feeling better doesn’t mean you’re cured; it usually means the medication is working. Stopping because you feel good is like taking off your glasses because you can see clearly.

Mistake #2: Running Out of Medication and Not Refilling

Lamotrigine is not a medication you can skip for a few days while you “get around to” refilling your prescription. Even a few days without the drug can trigger withdrawal or destabilization. And if you miss more than five days, restarting requires going back to square one with the titration.

Mistake #3: Tapering Too Quickly

Some doctors recommend a two-week taper. Some patients try to do it even faster. But the evidence suggests that slower is safer. The American Academy of Neurology’s 2-4 week taper is conservative, and many psychiatrists prefer even longer tapers—weeks or months—especially for patients who have been on high doses or long-term treatment.

Mistake #4: Not Having a Crisis Plan

If you’re going to taper off lamotrigine, you need a plan for what happens if things go wrong. Who do you call? What are the warning signs that you’re relapsing? What’s the plan for restarting the medication if needed? Going into a taper without this plan is asking for trouble.

Mistake #5: Stopping Without Telling Your Doctor

This should go without saying, but it happens all the time. Patients stop their medication, don’t tell their psychiatrist, and then show up weeks or months later in a full-blown episode. Your doctor can’t help you if they don’t know what’s happening.

Mistake #6: Ignoring Withdrawal Symptoms

Withdrawal symptoms are not something to “tough out.” They’re signals that your brain is struggling to adapt. If you’re experiencing significant withdrawal symptoms during a taper, it may mean you’re tapering too quickly and need to slow down.

FAQs

1. Can I stop lamotrigine cold turkey if I’m only on a low dose?

No. Even at low doses, abrupt discontinuation can trigger withdrawal symptoms, mood destabilization, and—in rare cases—seizures. The dose should always be tapered gradually under medical supervision, regardless of how low the dose is.

2. How long does lamotrigine withdrawal last?

Withdrawal symptoms typically begin within days of stopping or significantly reducing the dose. The duration varies depending on how long you were on the medication, your dose, and how quickly you taper. With a proper gradual taper, withdrawal symptoms can be minimized significantly. Some patients may experience lingering effects for weeks or even months after discontinuation.

3. Will I definitely relapse if I stop lamotrigine?

Not necessarily, but the risk is high. Studies show that discontinuing medications for one month or more significantly increases recurrence risk. However, about 47.3% of patients who discontinued for six months did not experience recurrence. The risk is substantial enough that stopping should never be taken lightly—and the decision should always be made with your doctor.

4. What if I need to stop lamotrigine because of side effects?

If you’re experiencing side effects, talk to your doctor—don’t just stop. Your doctor may be able to adjust your dose, change the timing of your doses, or switch you to a different medication. In some cases, patients who stopped due to side effects have been able to successfully restart lamotrigine later with a slower titration. If you do need to stop due to side effects, your doctor will guide you through a safe taper.

5. What should I do if I’ve already stopped lamotrigine abruptly?

Contact your doctor immediately. Do not restart the medication on your own, as this could trigger a severe skin reaction. Your doctor will assess your situation and determine whether you should restart (and at what dose) or continue with discontinuation under supervision. If you’re experiencing severe symptoms—especially seizures, suicidal thoughts, or severe mood episodes—seek emergency care.

Conclusion

Stopping lamotrigine for bipolar disorder is not a decision to be made lightly—or alone. The risks are real: withdrawal symptoms, seizures, and a dramatically increased chance of mood episode relapse that can undo years of progress. For some patients, the relapse rate after stopping exceeds 90%.What Happens When You Stop Taking Lamotrigine for Bipolar Disorder.

But that doesn’t mean you can never stop. Some patients do successfully discontinue lamotrigine after years of stability, working closely with their psychiatrist through a slow, carefully monitored taper. The key is patience, medical supervision, and a willingness to listen to your body—and to restart if things go wrong.

If you’re considering stopping lamotrigine, here’s your action plan:

Talk to your psychiatrist. Not your friend, not an online forum—your doctor.
If you both decide to proceed, create a tapering schedule. Expect it to take weeks or months, not days.
Have a crisis plan. Know the warning signs of relapse and what to do if they appear.
Stay connected. Regular check-ins with your doctor during the taper are essential.
Be willing to change course. If symptoms return, go back to your previous dose and try again another time—or accept that you may need the medication long-term.

Your mental health is worth protecting. Take the slow road, take the safe road, and never stop alone.

Have questions about managing bipolar disorder or tapering off medication? [Read our complete guide to bipolar disorder treatment options] or [subscribe to our newsletter] for the latest evidence-based mental health information delivered to your inbox.