Compare Remeron vs. Pristiq

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

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Remeron (mirtazapine)

Prescription only

Pristiq (Desvenlafaxine)

Prescription only
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
Improves mood.

Pristiq (Desvenlafaxine) is basically the same medication as Effexor, which is cheaper because it's available as a generic.

3.5/ 5 average rating with 196 reviewsforPristiq
Upsides
  • 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.
  • Effective at relieving symptoms and lowering relapse rates for depression.
  • Six out of ten people who use an antidepressant for the first time find that it works for them.
Downsides
  • Makes you more tired than other antidepressants.
  • More likely to cause minor weight gain (1-5 pounds) and raise cholesterol than any other antidepressant.
  • Similar to Effexor, without any extra benefits in clinical studies.
  • Can cause sexual side effects (usually low libido or the inability to have an orgasm or ejaculate).
  • Not available in generic form, so it's more expensive.
  • Like most antidepressants, can cause higher risk of suicidal thoughts and behavior for people age 24 and younger.
  • The first antidepressant you try doesn't always work or it can cause side effects you really don't like. You might need to try a few different medications until you find one that works for you.
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Used for
Dosage forms
  • Pill
  • Dissolving tablet
  • Extended release
Price
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Reviews
152 reviews so far
45%
saidit'sworth it
39%
saiditworked well
26%
saidit'sa big hassle

Have you used Remeron (mirtazapine)?

Leave a review
196 reviews so far
53%
saidit'sworth it
49%
saiditworked well
23%
saidit'sa big hassle

Have you used Pristiq (Desvenlafaxine)?

Leave a review
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
17possible side effects
  • Nausea
    22%
  • Dizziness
    13%
  • Dry mouth
    11%
  • Hyperhidrosis
    10%
  • Constipation
    9%
  • Insomnia
    9%
  • Fatigue
    7%
  • Decreased appetite
    5%
  • Somnolence
    4%
  • Vomiting
    3%
  • Anxiety
    3%
  • Vision blurred
    3%
  • Tremor
    2%
  • Abnormal dreams
    2%
  • Mydriasis
    2%
  • Vertigo
    2%
  • Tinnitus
    2%
See more detailed side effects
Risks and risk factors
  • 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
  • Suicidal thoughts or behavior
    • Age 24 years or younger
  • Serotonin syndrome
    • Using other medications that affect serotonin
  • Withdrawal
    • Stopping Pristiq (Desvenlafaxine) suddenly
  • High blood pressure
    • History of high blood pressure
  • Increased bleeding
    • Taking other blood-thinning drugs
  • Sexual dysfunction
  • Mania
    • History of bipolar disorder
    • At risk for bipolar disorder
See more detailed risks and warnings