Quick Answer: Most Lexapro side effects in women, like nausea, headaches, sleep changes, and fatigue, show up early and ease within a few weeks. Sexual side effects and period changes can last longer and are concerns that are worth raising with your prescriber. New suicidal thoughts, confusion, high fever with muscle stiffness, or unusual bleeding should require medical attention right away.
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If you started Lexapro to feel better but now you’re feeling tired, a little queasy, and sleeping strangely, you may be wondering whether this is the medication working or a sign that something’s wrong.
That’s a fair concern. Lexapro (escitalopram) is one of the most widely prescribed treatments for depression and generalized anxiety, and most of the symptoms women notice in the early weeks are common and expected. However, there are a few symptoms you shouldn’t wait out.
This guide sorts Lexapro side effects in women into three tiers: what’s normal, what to bring to your prescriber, and what needs help now, plus one red flag that most side effect lists skip.
What Lexapro Does and Why Side Effects Happen
Lexapro is an SSRI, short for selective serotonin reuptake inhibitor. In plain terms, it keeps more serotonin available in your brain. Over time, that can lift the anxiety, heaviness, fogginess, and signs of depression in women.
Serotonin isn’t just a mood chemical, though. Most of your body’s serotonin lives in your gut, and it also plays a part in sleep, sex drive, and blood clotting. So when Lexapro boosts serotonin, your stomach, sleep, and libido often notice before your mood does. That’s why so many side effects of Lexapro in women feel physical and show up in the first few weeks, well before the emotional relief arrives.
Your dose matters too. According to the FDA prescribing information for Lexapro, people taking 10 mg a day reported side effects at nearly the same rate as people on a placebo. At 20 mg, that rate jumped noticeably. If things got harder right after a dose increase, you’re not imagining it, and it’s worth telling your prescriber.
Common Lexapro Side Effects in Women
Most Lexapro side effects in women look the same as in men. These are the ones that land differently for women, or that women ask about most.
Lexapro Sexual Side Effects
In clinical trials, about 3% of women on Lexapro reported lower libido and 3% had trouble reaching orgasm. The FDA says the real number is likely higher since many women never bring it up. Depression can lower desire too, so tell your prescriber what you’ve noticed. There are often fixes that don’t mean giving up the benefits.
Lexapro and Periods
Cycle changes aren’t common, but some women notice heavier or irregular periods on Lexapro. SSRIs also slightly raise bleeding risk, especially combined with ibuprofen or naproxen, which many women take for cramps. If your periods get heavier or you’re bruising easily, tell your prescriber and mention every pain reliever you use.
Lexapro and Weight Gain
In short-term studies, people on Lexapro didn’t gain more weight than people on a placebo. Over months or years, though, some women do notice gradual weight gain, and appetite can go either way. If your weight is changing in a way that bothers you, talk to your prescriber early rather than stopping on your own.
Lexapro Hair Loss
Hair thinning on Lexapro is rare. Published case reports, mostly in women, describe shedding that began within the first few months and stopped once the medication was changed.
Pregnancy, Postpartum, and Breastfeeding
If you’re pregnant or planning to be, talk with your OB and prescriber together. The FDA label notes no established link to major birth defects or miscarriage. Taking Lexapro late in pregnancy, though, is tied to breathing and adjustment problems in newborns and a slightly higher risk of heavy bleeding after delivery. Because Lexapro may also be prescribed to treat postpartum depression, it’s important to discuss the benefits and risks of treatment with your care team. If you’re breastfeeding, watch your baby for unusual sleepiness or poor feeding, since small amounts pass into breast milk.
Perimenopause and Later Life
Hot flashes and night sweats can overlap with Lexapro’s sweating side effect, making it hard to tell which’s causing which. For women over 65, Lexapro stays in the body about 50% longer, the recommended dose is 10 mg, and the risk of low sodium is higher. Midlife is also when many women notice their drinking creeping up, which is worth reading about in our guide to perimenopause and alcohol.
Long-Term Side Effects of Lexapro in Women
Many women stay on Lexapro for months or years, and that’s often the right call. In a longer-term FDA study, people who kept taking Lexapro after it started working went longer before depression returned than those switched to placebo.
Most research on Lexapro’s long-term side effects in women comes from post-market reports rather than long trials, so the picture is less precise.
These are the long-term side effects of Lexapro in women worth tracking:
- Sexual side effects that don’t fade. Low desire or trouble with orgasm can persist for as long as you take the medication.
- Gradual weight gain. Short-term trials showed no meaningful difference from placebo, but longer use has been linked to weight gain.
- Emotional flatness. Some women describe feeling less joy along with less distress.
- Low sodium. The risk rises with age and with diuretics, so it matters more as women move past midlife.
- Bleeding risk. This doesn’t go away with time and adds to the risk when taking daily aspirin, ibuprofen, or blood thinners.
- Discontinuation symptoms. Lexapro isn’t considered addictive, but stopping after long use can still cause withdrawal-like symptoms, which is why a taper matters.
A yearly check-in with your prescriber, even when things feel stable, is the simplest way to catch these early. Bring up anything new, including changes in drinking, sleep, or relationships.
Is This Normal? A Quick Way to Sort What You’re Feeling
When it comes to anxiety symptoms in women, every new symptom can feel like a warning sign. Find what you’re noticing below to see whether it’s something to ride out, something to mention, or something that can’t wait.
Usually Normal: Often Eases Within the First Few Weeks
What it can look like:
- Nausea or upset stomach
- Headache
- Trouble sleeping, or feeling sleepy during the day
- Fatigue
- Dry mouth
- Sweating more than usual
- Diarrhea or constipation
What to do:
- Take your dose at the same time each day.
- Jot down symptoms and when they started.
- Bring the list to your next appointment.
Call Your Prescriber: Not an Emergency, but Don’t Just Wait It Out
What it can look like:
- Low sex drive or trouble reaching orgasm.
- Heavier periods, spotting, or changes in your cycle.
- Easy bruising or frequent nosebleeds.
- Hair thinning.
- Feeling emotionally flat or numb.
- Weight change you didn’t plan for.
- Early side effects that haven’t eased after a few weeks.
- You’re pregnant or planning to be.
What to do:
- Call within a few days.
- Ask about dose timing, dose changes, or other options.
- Don’t stop or change your dose on your own.
Get Help Now: Call 911 or Go to the ER
What it can look like:
- New or worse thoughts of suicide or self-harm.
- Agitation, confusion, racing heart, high fever, sweating, stiff or twitching muscles (possible serotonin syndrome).
- Bad headache with confusion, weakness, unsteadiness, or fainting (possible low sodium).
- Eye pain, sudden vision changes, or redness around the eye.
- Days of little sleep, racing thoughts, and reckless behavior.
- Black stools, vomiting blood, or bleeding that won’t stop.
- Seizures or swelling of the face or throat.
What to do:
- Get emergency care.
- Bring your medication list, including supplements and anything you drank or used.
Your First 8 Weeks on Lexapro: A Realistic Timeline
Side effects and benefits don’t arrive on the same schedule. Knowing the usual order can keep you from quitting right before the medication starts to help.
Week 1
Lexapro reaches steady blood levels in about a week. Lexapro side effects in the first week are often the most noticeable: nausea, headaches, and sleep changes. The NHS notes that headaches usually fade after the first week.
Weeks 2 to 4
Physical side effects often settle. Some women notice sleep or energy improving before mood does. A few feel more restless or anxious at first. Report that, especially if it’s intense, because the FDA asks prescribers to watch closely for mood changes in the first few months and after any dose change.
Weeks 4 to 8
Clinical trials for Lexapro measured results over eight weeks. If you’ve noticed little change by this point, it’s a good time to check in. Sexual side effects don’t always fade on their own, so don’t assume you just have to live with them.
After 8 weeks
Ongoing side effects are a reason for a conversation with a professional, not something to quietly endure. Your prescriber can often make adjustments. If you plan to stay on Lexapro for a year or more, the next section covers what to keep an eye on.
The Red Flag Most Lists Miss: Using Alcohol or Pills to Cope
When the first weeks on Lexapro are hard, or the anxiety hasn’t lifted yet, it’s natural to look for relief. For many women, that relief is a glass of wine at night, and one glass can gradually become two, then most evenings.
The Lexapro medication guide says not to drink during treatment. Alcohol disrupts sleep, works against the relief you started Lexapro for, and over time feeds anxiety instead of easing it. Mixing Lexapro with stimulants like Adderall, opioids such as tramadol, or St. John’s Wort also raises the risk of serotonin syndrome.
It may be time to get support if:
- You’re drinking more since starting Lexapro, not less.
- You skip doses so you can drink.
- You haven’t told your prescriber about your drinking or other use.
- You need a drink or a pill to sleep, focus, or get through the day.
None of this means you or the medication failed. It usually means mood and substance use are feeding each other, and treating only one rarely works.
Don’t Stop Lexapro Cold Turkey!
If side effects make you want to quit, call your prescriber first. Stopping suddenly can cause discontinuation symptoms, including:
- Dizziness and “brain zaps” that feel like brief electric shocks.
- Irritability, anxiety, or mood swings.
- Headache, fatigue, and trouble sleeping.
- Confusion.
A gradual taper planned with your prescriber is the safer route.
When It’s More Than Side Effects: How The Fullbrook Center Can Help
If Lexapro side effects in women are your only topic of concern, your prescriber is the right first call. But if you’ve started leaning on alcohol or pills to get through the day, it gets hard to tell what’s coming from the medication, what’s coming from your mood, and what’s coming from the substance. Our dual diagnosis treatment for women is designed to untangle exactly that.
In our women’s residential treatment, you’ll find:
- A safe detox, with 24-hour nursing and medical care on site.
- A psychiatric assessment once your head is clear, so your diagnosis and medications reflect how you actually feel.
- A real say in your medication plan, including whether Lexapro is still the right fit.
- Therapy with master’s-level clinicians trained in EMDR, DBT, and CBT.
- A small, women-only community on a quiet Texas Hill Country campus.
Whether you’re high-functioning and exhausted or not sure where to begin, our clinical team will meet you where you are. We make getting help easy. From verifying your insurance to our efficient admissions process, we make every step as simple as possible so you can focus on what matters: your overall wellness.
FAQs About Lexapro Side Effects in Women
How long do Lexapro side effects last?
Most early Lexapro side effects in women, like nausea, headache, and sleep changes, ease within the first few weeks as your body adjusts. Sexual side effects can last longer. If side effects haven’t improved after a few weeks, or they’re affecting your daily life, call your prescriber.
What are the long-term side effects of Lexapro in women?
The most common long-term side effects of Lexapro in women are sexual side effects that persist, gradual weight gain, and feeling emotionally flat. Older women also face a higher risk of low sodium. None of these mean you have to stop, but they’re worth reviewing with your prescriber at least once a year.
Are Lexapro side effects in females different from those in men?
The main list is the same, and the FDA doesn’t adjust Lexapro dosing by sex. Lexapro side effects in females can show up in ways men don’t deal with, including period changes, decisions around pregnancy and breastfeeding, and symptoms that overlap with perimenopause.
Can I drink alcohol on Lexapro?
The main list is the same, and the FDA doesn’t adjust Lexapro dosing by sex. Lexapro side effects in females can show up in ways men don’t deal with, including period changes, decisions around pregnancy and breastfeeding, and symptoms that overlap with perimenopause.
Is feeling emotionally numb on Lexapro normal?
Some women describe feeling flat or less like themselves. It’s worth raising with your prescriber, since a dose change or different medication may help. Don’t stop on your own.