Compare Buspar vs. Remeron

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

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Buspar (buspirone)

Prescription only

Remeron (mirtazapine)

Prescription only
Helps you relax.

Buspar (buspirone) relieves anxiety with less drowsiness and abuse potential than other anti-anxiety medicines, but it takes time to work and effects might wear off over time.

3.4/ 5 average rating with 67 reviewsforBuspar
Improves mood.

Remeron (mirtazapine) improves your mood and helps you sleep better, but can cause more weight gain than any other antidepressant.

3.3/ 5 average rating with 152 reviewsforRemeron
Upsides
  • Doesn't cause as much physical dependence or withdrawal symptoms as other medications used for anxiety.
  • Available as a generic, which is cheaper.
  • Tablets can be split for easy dose changes.
  • Doesn't cause as much drowsiness as other medications for anxiety.
  • Effective at relieving some depression symptoms.
  • Starts to work more quickly than most antidepressants.
  • Can help you fall asleep if you have trouble sleeping.
  • Can also help relieve anxiety.
  • Good option if you are underweight or frail, because it can help you gain weight.
  • Available as a generic.
Downsides
  • Not for quick relief of anxiety symptoms since Buspar (buspirone) can take as long as 4 weeks to fully work.
  • Not as effective for short-term anxiety conditions or panic disorders.
  • Some people find that Buspar (buspirone) loses effectiveness over long periods of time.
  • Must take Buspar (buspirone) twice daily for full effect.
  • Makes you more tired than other antidepressants.
  • More likely to cause minor weight gain (1-5 pounds) and raise cholesterol than any other antidepressant.
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Used for
Dosage forms
  • Pill
  • Pill
  • Dissolving tablet
Price
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Reviews
67 reviews so far
46%
saidit'sworth it
45%
saiditworked well
22%
saidit'sa big hassle

Have you used Buspar (buspirone)?

Leave a review
152 reviews so far
45%
saidit'sworth it
39%
saiditworked well
26%
saidit'sa big hassle

Have you used Remeron (mirtazapine)?

Leave a review
Side effects
19possible side effects
  • Dizziness
    12%
  • Drowsiness
    10%
  • Nausea
    8%
  • Headache
    6%
  • Nervousness
    5%
  • Fatigue
    4%
  • Trouble sleeping
    3%
  • Lightheadedness
    3%
  • Dry mouth
    3%
  • Worse concentration
    2%
  • Excitement
    2%
  • Anger/hostility
    2%
  • Confusion
    2%
  • Depression
    2%
  • Blurred vision
    2%
  • Upset stomach
    2%
  • Diarrhea
    2%
  • Numbness
    2%
  • Weakness
    2%
See more detailed side effects
17possible side effects
  • Sleepiness
    54%
  • Dry mouth
    25%
  • Increased appetite  
    17%
  • Increased appetite
    17%
  • Constipation
    13%
  • Weight gain
    12%
  • Lack of energy
    8%
  • Dizziness
    7%
  • Flu syndrome
    5%
  • Abnormal dreams
    4%
  • Abnormal thinking
    3%
  • Back pain
    2%
  • Swelling in limbs
    2%
  • Muscle pain
    2%
  • Tremor
    2%
  • Confusion
    2%
  • Urinary frequency
    2%
See more detailed side effects
Risks and risk factors
  • Higher blood pressure
    • Taking Buspar (buspirone) with MAOIs
    • Taking Buspar (buspirone) within 14 days after stopping a MAOIs
  • Serotonin syndrome
    • Taking other medicines that affect serotonin levels
  • Withdrawal symptoms from other anti-anxiety medicines
    • Stopping benzodiazepines suddenly
See more detailed risks and warnings
  • Suicidal thoughts or behavior
    • Age 24 years or younger
  • Serotonin syndrome
    • Using other medications that affect serotonin
  • Heart problems
    • History of heart problems
    • History of liver problems
    • Higher dose
  • Driving impairment
    • Alcohol
    • Taking other medicines that make you less alert
  • Weight gain
  • Blood disorders
See more detailed risks and warnings