Effexor XR (venlafaxine) and Lexapro (escitalopram) are prescription medications used to treat depression and anxiety.

Venlafaxine is classified in a group of drugs called serotonin-norepinephrine reuptake inhibitors (SNRIs).

Unlike Effexor XR, it can be used for children and adolescents of a certain age.

Close-up of bottle of Effexor XR medication with red pills on table

Getty Images /Bloomberg/ Contributor

Getty Images /Bloomberg/ Contributor

What Is Effexor XR and How Does It Work?

Venlafaxine is a serotonin-norepinephrine reuptake inhibitor (SNRI).

The IR generic version is approved to treatmajor depressive disorder.

SNRIs work by increasing brain levels of serotonin and norepinephrine, which areneurotransmittersor chemical messengers.

Increasing levels of these neurotransmitters helps improve symptoms.

Some other examples of off-label uses may include:

What Is Lexapro and How Does It Work?

Lexapro is an SSRI.

Lexaprois FDA-approved in adults and adolescents 12 years and older to treat depression.

Always talk to your healthcare provider about the proper dosage guidance for your needs.

Effexor XR vs. Lexapro: How Long Do They Take to Work?

However, it may take up to about eight weeks to notice the full effects of this medication.

However, it can take up to about eight weeks to see the full effects.

This includes both Effexor XR and Lexapro.

Lexapro is not approved for use in children under 7 years old.

Like most medications, Effexor XR and Lexapro have other side effects that you might experience while taking them.

Some are mild, while others may be more severe.

Some examples of drug interactions are listed below.

This can range from mild to life-threatening and can cause death if not treated.

Certain medications can also affect bleeding.

This is not a complete list of drug interactions.

Other drug interactions may occur with Effexor XR or Lexapro.

Consult your healthcare provider for more information about drug interactions and how they may affect you.

These drugs have various similarities and differences.

Anxiety & Depression Association of America.Medication options.

Mental Health America.What is serotonin?

Mental Health America.What is noradrenaline?

Prescribers Digital Reference (PDR).Effexor.

Hollander E, Friedberg J, Wasserman S, et al.Venlafaxine in treatment-resistant obsessive-compulsive disorder.J Clin Psychiatry.

2011;9(3):117-121.

Prescribers Digital Reference (PDR).Lexapro.

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National Alliance on Mental Illness.Venlafaxine (Effexor).

National Alliance on Mental Illness.Escitalopram (Lexapro).