Escitalopram is the same medication as Lexapro. Lexapro is the brand name, and escitalopram is the generic name for the identical active ingredient. When your pharmacy fills a prescription for either one, you are getting the same drug, just made by different manufacturers.
How the Two Names Are Related
Lexapro was the original brand-name product, approved by the FDA on August 14, 2002. Its active ingredient is escitalopram oxalate. Once the patent expired, other manufacturers were allowed to produce and sell the same molecule under its generic name: escitalopram. This is the same relationship aspirin has to Bayer, or ibuprofen has to Advil.
Both the brand and generic versions are selective serotonin reuptake inhibitors (SSRIs). They work by blocking the reabsorption of serotonin in the brain, which leaves more serotonin available between nerve cells. This boost in serotonin activity is what helps relieve symptoms of depression and anxiety. Escitalopram is highly selective for serotonin, meaning it has minimal effects on other brain chemicals like norepinephrine and dopamine.
What the FDA Requires for Generic Approval
Generic escitalopram must meet strict bioequivalence standards before the FDA allows it on the market. The generic version has to deliver the active ingredient into your bloodstream at the same rate and to the same extent as brand-name Lexapro. Specifically, the FDA requires the generic to fall within an 80% to 125% confidence interval compared to the brand for key measures like peak concentration and total absorption. In practice, most approved generics land much closer to 100%.
The active ingredient is chemically identical. What can differ between brand and generic are the inactive ingredients: fillers, binders, coatings, and dyes that hold the tablet together and give it its shape and color. These inactive ingredients are generally considered inert, but in rare cases a person may be sensitive to a specific dye or filler in one manufacturer’s version. If you notice a difference after switching, it is worth mentioning to your pharmacist, who can check which inactive ingredients differ and potentially switch you to another manufacturer’s generic.
What Escitalopram Treats
Whether prescribed as Lexapro or generic escitalopram, this medication is FDA-approved for two conditions:
- Major depressive disorder (MDD) in adults under 65 and in adolescents 12 and older
- Generalized anxiety disorder (GAD) in adults under 65
The typical starting dose for adults with either condition is 10 mg once a day, taken in the morning or evening. Adolescents 12 and older with depression start at the same dose. Your prescriber may adjust this based on how you respond.
Escitalopram vs. Citalopram
One important distinction that catches people off guard: escitalopram is closely related to, but not the same as, citalopram (brand name Celexa). Citalopram is a mixture of two mirror-image molecules. Escitalopram is the purified, active half of that mixture, which is why it was developed as a separate medication. Because they overlap chemically, you should not take escitalopram and citalopram together. If you are switching from one to the other, your prescriber will manage the transition.
Why You Might See Different Pills
If your pharmacy switches you from Lexapro to generic escitalopram, or from one generic manufacturer to another, the pill may look completely different. The shape, color, size, and markings can all change because those features are tied to the manufacturer, not the drug itself. This is purely cosmetic. The active medication inside is the same molecule at the same dose.
The most practical difference between brand and generic is cost. Generic escitalopram is significantly cheaper than brand-name Lexapro, which is why most pharmacies automatically dispense the generic unless your prescription specifically requires the brand. If your insurance or pharmacy makes a switch and you want to confirm what you are taking, the drug name and dose will be printed on your prescription label regardless of the manufacturer.