Can Lexapro cause insomnia?

Yes. Lexapro (escitalopram), a widely prescribed antidepressant in the SSRI (Selective Serotonin Reuptake Inhibitor) class, can cause insomnia in some people. This happens because Lexapro boosts serotonin levels in the brain, which helps regulate mood but can also affect the body’s sleep-wake cycle. As a result, some individuals may find it harder to fall asleep, stay asleep, or experience restful sleep—especially in the early stages of treatment.

What to Know

• Common occurrence: While insomnia is a recognized side effect, it doesn’t happen to everyone. In fact, some patients may notice better sleep quality once their depression or anxiety symptoms improve.

• Timing matters: Taking Lexapro in the morning rather than at night may help minimize nighttime alertness and sleep disruptions.

• Adjustment period: Your body often adapts within 2–4 weeks, and sleep patterns may return to normal without any intervention.

• Lifestyle factors: Limiting caffeine, reducing screen time before bed, and maintaining a consistent sleep routine can support better rest while on Lexapro.

• When to seek help: If sleep problems persist beyond the first month, or if they worsen, contact your healthcare provider. They may adjust your dosage, recommend changing your dosing time, or suggest behavioral strategies or safe sleep aids.

Important Safety Note
Never stop or change your Lexapro dosage without medical guidance, as abrupt changes can lead to withdrawal symptoms or a return of depression and anxiety. Your doctor can help you find the right balance between managing your mental health and improving your sleep quality.

Bottom line: Sleep disturbances with Lexapro are usually temporary and manageable. Open communication with your healthcare provider is the best way to address any side effects while continuing to benefit from the medication.