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
Ativan
Xanax vs. Ativan Dosage
Xanax
Ativan
| 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 |
| 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
| 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
| 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
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