Does Lexapro Cause Nausea?
Yes, nausea is a common side effect of Lexapro (escitalopram), an SSRI antidepressant. Clinical trials and post-marketing data show it affects 15-25% of users, often starting in the first week and usually improving over time.[1][2]
How Common Is Nausea on Lexapro?
In placebo-controlled studies, nausea occurred in 15% of Lexapro patients versus 7% on placebo at 10 mg/day, rising to 24% at 20 mg/day. It's the most frequently reported gastrointestinal issue.[2] Women and younger adults report it more often.[3]
Why Does Lexapro Cause Nausea?
Lexapro boosts serotonin levels, which can overstimulate gut receptors (5-HT3) before the brain adapts. This triggers nausea signals via the chemoreceptor trigger zone. Tolerance typically builds within 1-2 weeks.[1][4]
How Long Does Nausea Last?
Most cases are mild and resolve within 7-14 days as the body adjusts. Persistent nausea beyond 4 weeks affects under 5% and may signal need for dose adjustment or switching meds.[2][5]
What Helps Manage Nausea from Lexapro?
- Take with food to slow absorption.
- Start at lowest dose (5-10 mg) and titrate slowly.
- Use anti-nausea aids like ginger, ondansetron, or meclizine if approved by a doctor.
- Stay hydrated; avoid alcohol.[3][5]
When Should You Worry About Nausea?
Seek medical help if nausea is severe, leads to vomiting/dehydration, or pairs with symptoms like abdominal pain, jaundice, or serotonin syndrome signs (agitation, rapid heartbeat). It rarely indicates serious issues like pancreatitis.[1][2]
Does Nausea Differ from Other SSRIs?
Lexapro has lower nausea rates than paroxetine (26%) or sertraline (20-25%), but similar to citalopram. Switching to SNRIs like duloxetine may reduce it for some.[3][4]
Sources
[1] Lexapro Prescribing Information (FDA)
[2] Drugs.com - Lexapro Side Effects
[3] Mayo Clinic - Escitalopram
[4] PubMed - SSRI Gastrointestinal Effects
[5] WebMD - Managing SSRI Side Effects