Compare Xanax vs. Klonopin

Head-to-head comparisons of medication uses, side effects, ratings, and more.

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Xanax (alprazolam)

Prescription only

Klonopin (clonazepam)

Prescription only
Helps you relax.

Xanax (alprazolam) effectively treats occasional or short-term anxiety and panic attacks. Compared to similar drugs, it is more likely to cause withdrawal symptoms and can have more interactions with some medicines.

3.9/ 5 average rating with 1287 reviewsforXanax
Controls seizures and helps panic attacks.

Klonopin (clonazepam) can be used for immediate relief of panic attacks and seizures, but is not intended for long-term management.

3.8/ 5 average rating with 767 reviewsforKlonopin
Upsides
  • Xanax (alprazolam) can be used to manage anxiety associated with depression.
  • Works very quickly - in hours.
  • Available in generic.
  • More people who took Klonopin (clonazepam) were free of panic attacks, compared to people who did not take Klonopin (clonazepam).
  • Klonopin (clonazepam) works quickly, within the hour.
  • Can be used together with antidepressants to manage panic disorder.
  • Klonopin (clonazepam) lasts longer and has less severe withdrawal symptoms compared to other similar medicines.
Downsides
  • Use of Xanax (alprazolam) can cause memory problems, drowsiness, dizziness, and confusion.
  • Xanax (alprazolam) can be habit-forming, so it's not typically used for long-term treatment.
  • Compared to other similar drugs, Xanax (alprazolam) is more likely to cause withdrawal symptoms if you take it for a long time and then stop suddenly.
  • If you have liver problems, Xanax (alprazolam) may not be the best choice since it is processed by the liver. Several drugs can also interfere with how Xanax (alprazolam) works. Talk to your doctor to see if Xanax (alprazolam) is right for you.
  • Klonopin (clonazepam) can cause memory problems, drowsiness, dizziness, and confusion.
  • Klonopin (clonazepam) can be habit-forming, so is not typically used for long-term treatment.
  • May require higher doses of Klonopin (clonazepam) over time to establish the same seizure control.
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Used for
Dosage forms
  • Pill
  • Extended release
  • Dissolving tablet
  • Liquid
  • Pill
  • Dissolving tablet
Price
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Reviews
1287 reviews so far
74%
saidit'sworth it
55%
saiditworked well
13%
saidit'sa big hassle

Have you used Xanax (alprazolam)?

Leave a review
767 reviews so far
70%
saidit'sworth it
52%
saiditworked well
14%
saidit'sa big hassle

Have you used Klonopin (clonazepam)?

Leave a review
Side effects
24possible side effects
  • Drowsiness
    41%
  • Lightheadedness
    21%
  • Dry mouth
    15%
  • Depression
    14%
  • Headache
    13%
  • Confusion
    10%
  • Constipation
    10%
  • Diarrhea
    10%
  • Nausea/vomiting
    10%
  • Difficulty sleeping
    9%
  • Fast heartbeat
    8%
  • Nasal congestion
    7%
  • Blurry vision
    6%
  • Low blood pressure
    5%
  • Nervousness
    4%
  • Increased salivation
    4%
  • Muscle rigidity
    4%
  • Tremor
    4%
  • Skin irritation/allergy
    4%
  • Fainting
    3%
  • Weight gain
    3%
  • Dizziness
    2%
  • Restlessness
    2%
  • Weight loss
    2%
See more detailed side effects
4possible side effects
  • Drowsiness
    37%
  • Depression
    7%
  • Abnormal coordination
    6%
  • Loss of full control of bodily movements
    5%
See more detailed side effects
Risks and risk factors
  • Decreased breathing from use with opioids
    • Taking Xanax (alprazolam) with opioids, drugs or alcohol
    • Using Xanax (alprazolam) for a longer duration and at high doses
  • Dependence and withdrawal
    • History of substance abuse
    • Taking with alcohol or drugs
    • Taking more than 4 mg/day or longer than 12 weeks
    • Stopping Xanax (alprazolam) suddenly
  • Suicidal thoughts or behavior
    • Severe depression
  • Driving impairment
    • Taking with alcohol or drugs
  • Drug interactions
    • Current liver problems
    • Taking medicines such as antifungals, cimetidine, or some HIV medicines
See more detailed risks and warnings
  • Sedation, respiratory depression, coma and death
    • Taking with opioids
    • Drinking alcohol
  • Dependence and withdrawal
    • Taking high dosage
    • Taking long-term
    • History of drug abuse
  • Driving impairment
    • Drinking alcohol
    • Taking other medicines that make you less alert
  • Suicidal behavior and ideation
See more detailed risks and warnings