Xanax vs. Ativan

See how Xanax and Ativan compare on approved uses, dosing, side effects, and cost.

Key Takeaways

  • Xanax is FDA-approved for both generalized anxiety disorder and panic disorder, while Ativan is approved for anxiety disorders but not specifically panic disorder.

  • Xanax has a shorter half-life and is usually taken two to four times a day, while Ativan is broken down by a simpler liver pathway and often dosed two to three times a day.

  • Both drugs carry FDA boxed warnings for abuse, dependence, and life-threatening interactions with opioids or other sedatives.

Xanax vs. Ativan Drug Summary

Xanax

Xanax (alprazolam) is a benzodiazepine used to treat generalized anxiety disorder and panic disorder, including panic disorder with agoraphobia. It is taken by mouth, usually two to four times a day, starting at a low dose that is increased gradually. An extended-release version, Xanax XR, allows once-daily dosing for panic disorder.

Ativan

Ativan (lorazepam) is a benzodiazepine used to treat anxiety disorders, short-term anxiety symptoms, and anxiety that occurs with depressive symptoms. It comes as an oral tablet, an oral concentrate, and an injection used for sedation before procedures. Oral doses are typically split into two or three doses across the day.

Xanax vs. Ativan Side Effects

Xanax

Most common
sedation (up to 77%)
dizziness (up to 30%)
poor coordination (up to 40%)
memory impairment (up to 33%)

Ativan

Most common
sedation (15.9%)
dizziness (6.9%)
weakness (4.2%)
unsteadiness (3.4%)

Xanax vs. Ativan Dosage

Xanax

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 0.25-0.5 mg 3x/day At the start
Maximum dose 1 to 10 mg/day If needed
Dose changes 3 increases As tolerated

Ativan

Dosage
Dosage Table
STAGE DOSE WHEN
Starting dose 0.05 mg/kg IM At the start
Maximum dose 1 to 10 mg/day If needed
Dose changes 2 increases As tolerated

Xanax vs. Ativan Indications

Xanax

Xanax is FDA-approved for generalized anxiety disorder and for panic disorder, with or without agoraphobia. It tends to take effect within about an hour, which makes it useful for sudden panic symptoms as well as ongoing anxiety.

  • Generalized anxiety disorder

  • Panic disorder, with or without agoraphobia

  • Off-label: insomnia related to anxiety

  • Off-label: adjunct for anxiety with depression

Ativan

Ativan is FDA-approved for anxiety disorders, short-term relief of anxiety symptoms, and anxiety linked to depressive symptoms. The injectable form is also approved for sedation before anesthesia.

  • Anxiety disorders

  • Short-term relief of anxiety symptoms

  • Anxiety with depressive symptoms

  • Preanesthetic sedation (injection)

Xanax vs. Ativan Pros and Cons

Xanax

Xanax works fast, which suits panic attacks that hit without warning, and it is FDA-approved specifically for panic disorder. Its short half-life means doses can wear off between pills, which can bring on rebound anxiety and drives more frequent dosing than some other benzodiazepines.

Pros

  • FDA-approved specifically for panic disorder, not just general anxiety

  • Fast onset, often felt within about an hour

  • Extended-release option (Xanax XR) for once-daily dosing

  • Widely available as a low-cost generic

Cons

  • Short half-life means more frequent daily dosing

  • Interacts with drugs that affect the CYP3A liver enzyme

  • Higher risk of rebound anxiety between doses

  • Not FDA-approved for anxiety with depressive symptoms specifically

Ativan

Ativan has a longer duration of action and is broken down by a simpler liver pathway, so it interacts with fewer other medications. It is not FDA-approved specifically for panic disorder, but it is approved for anxiety tied to depressive symptoms and for sedation before procedures.

Pros

  • Metabolized by a simple liver pathway, fewer drug interactions

  • FDA-approved for anxiety associated with depressive symptoms

  • Available as an injection for preanesthetic sedation

  • Longer-acting, allowing less frequent daily dosing

Cons

  • Not FDA-approved specifically for panic disorder

  • Poorly cleared by dialysis if an overdose occurs

  • Sedation and unsteadiness risk rise notably with age

  • Requires careful dosing in liver or kidney impairment

Common Symptoms and Related Diseases You Can Explore

Explore a range of common symptoms the Doctronic Symptom Checker can help you understand.