Does Lexapro Make You Shaky? | Side Effects And Fixes

Lexapro can cause shakiness in some people, often early on or after a dose change, and it often eases as your body adjusts.

Feeling shaky can be unsettling, especially when you started Lexapro to feel steadier. A mild tremor or “jittery” feeling is a known effect with escitalopram, the medicine in Lexapro, and many people see it fade within the first few weeks. Shaking can also come from other triggers that show up at the same time, like less sleep, more caffeine, low blood sugar, or a new medicine layered on top.

This article helps you sort the common from the urgent, track patterns that matter, and know what to bring to your prescriber so you can adjust safely without guessing.

Why Shakiness Can Happen With Lexapro

Lexapro is an SSRI (selective serotonin reuptake inhibitor). It shifts serotonin signaling in the brain and body. During the first stretch of treatment, that shift can change how “amped up” the nervous system feels and how smoothly muscles fire.

Early activation can feel like jitters

Some people notice a wired feeling, mild restlessness, or a fine hand tremor when they first start an SSRI. It can overlap with anxiety symptoms, so it may be hard to tell what’s medicine and what’s the underlying condition. MedlinePlus drug information for escitalopram lists shaking among symptoms that call for medical guidance, especially when paired with other warning signs.

Dose changes can restart side effects

If your dose was raised in the last 1–2 weeks, your body is adjusting again. A bump from 5 mg to 10 mg, or from 10 mg to 20 mg, can bring back startup effects for a short time. The same can happen if you missed doses for a few days and restarted at your usual amount.

Your daily habits can magnify the feeling

Shakiness often gets louder when the nervous system is already on edge. Common amplifiers include caffeine, nicotine, skipped meals, and short sleep.

Lexapro Shakiness After A Dose Change: What To Track

If the shakiness started soon after you began Lexapro or changed the dose, tracking a few details for one week can clarify what’s happening. You’re looking for a pattern: time of day, relation to dosing, and what else was in play (caffeine, meals, workouts, stress).

Name the sensation

• Fine tremor: A small, fast shake in hands when holding a phone, spoon, or cup.
• Internal vibration: A buzzing feeling inside the chest or arms without visible shaking.
• Restless energy: Feeling driven to move, pace, or bounce a leg.

Check the timing

Mild SSRI-related tremor often shows up during the first days to weeks. If it is linked to dosing, you may notice it peaks a few hours after taking Lexapro and then eases. If it is linked to caffeine, it may track with morning drinks and settle after lunch. If it is linked to low food intake, it may lift after eating.

Watch for interactions

Some combinations raise the odds of tremor or restlessness. This includes other serotonin-raising medicines, stimulant ADHD medicines, some migraine medicines, and certain cold products. The FDA labeling for Lexapro warns about serotonin syndrome in the Lexapro label, which can include trembling and muscle twitching, especially with interacting drugs.

Does Lexapro Make You Shaky? What The Feeling Usually Means

Yes, Lexapro can make you shaky. In many cases it’s a mild tremor or jittery feeling that shows up early, then calms down as your system adapts. Still, it’s smart to screen for red flags and for non-Lexapro causes that need a different fix.

Common and often short-lived scenarios

• Startup tremor: Starts within days to two weeks, often improves by week 4–6.
• Activation jitters: Restless, revved-up feeling that eases as sleep and anxiety settle.
• Caffeine overlap: Tremor that tracks with coffee, tea, or energy drinks.

Scenarios to take more seriously

• Akathisia: Strong inner restlessness where sitting still feels hard.
• Low sodium (hyponatremia): SSRIs can be linked with low sodium in some groups. The NHS escitalopram side effects page lists confusion, weakness, and cramps as clues that need urgent medical advice.
• Withdrawal effects: Missing doses or stopping can cause dizziness, tingling, and shaking in some people.

When Shakiness Is A Medical Emergency

Seek urgent care right away if shakiness comes with symptoms that suggest a severe reaction. Don’t drive yourself if you feel confused, faint, or unsteady.

Serotonin syndrome warning signs

Serotonin syndrome is a dangerous spike in serotonin activity. The official prescribing information lists this risk and notes it can be life-threatening. DailyMed prescribing information for Lexapro describes the warning and interacting medicines.

• Fever
• Heavy sweating not tied to heat or exercise
• Agitation or confusion
• Muscle stiffness, twitching, or jerking
• Fast heartbeat, diarrhea, vomiting

Other urgent red flags

• New seizure
• Severe allergic reaction signs like facial swelling or trouble breathing
• Chest pain or fainting
• Sudden one-sided weakness, slurred speech, or vision loss

What To Do If Lexapro Is Making You Shaky

If you have mild shakiness without the emergency signs above, you have several safe moves. Bring your notes to your prescriber so you can decide on a plan that fits your symptoms and history.

Don’t stop Lexapro on your own

Stopping suddenly can cause withdrawal symptoms and can spike anxiety. If you think Lexapro is the driver, the safest route is a planned change with your prescriber: holding the dose longer, lowering it, switching dosing time, or changing medicines.

Run a “steady inputs” week

• Keep caffeine consistent and modest, or cut it back stepwise.
• Eat regular meals with protein.
• Keep hydration steady.
• Avoid starting new supplements unless your clinician asked for them.
• Keep workouts moderate.

Ask about dose timing

Some people feel shakier after taking Lexapro. Others feel more jittery when they take it at night and lose sleep. The label states it can be taken once daily, morning or evening, with or without food, so timing can be adjusted when your prescriber agrees.

Shaky Feeling Checklist By Likely Cause

This table is not a diagnosis tool. It’s a way to match clues with the next safe step so your visit stays focused.

What It May Be	Clues That Fit	Next Step
Startup tremor from Lexapro	Starts in first 1–2 weeks; fine hand tremor; sleep may be lighter	Track for 7 days; ask about holding dose longer
Shakiness after a dose increase	Begins within days of a dose change; peaks a few hours after dosing	Ask if a slower titration fits your case
Activation jitters	Restless energy, paced breathing; worse with stress	Ask about short-term options and a sleep plan
Akathisia	Can’t sit still; urge to move; distress feels physical	Call prescriber soon; dose change may be needed
Caffeine or stimulant overlap	Tracks with coffee, energy drinks, nicotine, ADHD meds	Cut back stepwise; keep caffeine steady day to day
Low blood sugar	Shaky + sweaty + hungry; improves after eating	Regular meals; ask about diabetes meds if you take them
Withdrawal from missed doses	Missed pills; dizziness, tingling, “electric” sensations	Return to schedule; ask how to taper safely if stopping
Low sodium	Headache, confusion, weakness, cramps	Same-day medical check and lab testing
Serotonin syndrome	Tremor + fever + sweating + confusion; new interacting drug	Emergency care

How Prescribers Often Adjust The Plan

Your prescriber’s plan depends on why you’re taking Lexapro, how long you’ve been on it, and how disruptive the tremor is.

• Wait and monitor: If symptoms are mild and trending down.
• Hold or lower the dose: Common after a dose increase that brought the tremor back.
• Change timing: Morning vs evening can change how jittery you feel.
• Review other meds: A second drug may be driving the tremor.
• Check labs when indicated: Sodium or thyroid testing in higher-risk cases.

Seven-Day Tracking Table You Can Bring To Your Appointment

Keep entries short. The goal is pattern recognition, not a diary.

Log Item	How To Note It	Why It Helps
When you took Lexapro	Time + dose	Shows links to dosing peaks
Shakiness level	0–10 rating morning, afternoon, night	Shows trend across days
Caffeine and nicotine	Type + amount + time	Separates stimulant tremor from SSRI effects
Meals	Rough times you ate	Flags low blood sugar patterns
Sleep	Hours + rest quality	Poor sleep can amplify tremor
New meds or supplements	Name + start date	Spots interaction timing

What Most People Can Expect

If shakiness started soon after beginning Lexapro, it often improves as your body adjusts, especially when sleep and caffeine are steadier. If it started after a dose change, a slower ramp or a dose adjustment can help. If it comes with fever, confusion, stiff muscles, or severe agitation, treat it as urgent and get medical care right away.