Compare Paxil vs. Remeron

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

Paxil
(paroxetine)

Remeron
(mirtazapine)

Improves mood and helps you relax. Paxil (Paroxetine) is good for treating depression and anxiety but it causes more weight gain, sleepiness, and withdrawal symptoms than other antidepressants.Improves mood. Remeron (Mirtazapine) is okay for treating depression and good for sleep. More likely to cause weight gain than any other antidepressant.
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Coupons for Paxil
Best available price for 30 (20mg) tablets of paroxetine
Coupons for Remeron
Best available price for 30 (15mg) tablets of mirtazapine
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.53Paxil
Reviews for Paxil (paroxetine)
52%
of people (All ages) say Paxil (paroxetine) is worth it
39%
say it works well
24%
say it's a big hassle
694 reviews
Have you used Paxil (paroxetine)?
Worth itNot sureNot worth it
Reviews for Remeron (mirtazapine)
45%
-7% worse vs. Paxil (paroxetine)
39%
Same vs. Paxil (paroxetine)
26%
-2% worse vs. Paxil (paroxetine)
152 reviews
Have you used Remeron (mirtazapine)?
Worth itNot sureNot worth it
Side effects
PaxilRemeron
  • Nausea 17%
  • Drowsiness 14%
  • Dry mouth 6%
  • Headache 1%
  • Muscle weakness 9%
  • Constipation 5%
  • Sleep difficulty 7%
  • Ejaculatory disturbance‡§ 13%
  • Dizziness 7%
  • Diarrhea 4%
More Paxil side effects »
  • Drowsiness 36%
  • Dry mouth 10%
  • Increased appetite 15%
  • Constipation 6%
  • Weight gain 10%
  • Muscle weakness 3%
  • Dizziness 4%
  • Flu syndrome 2%
  • Abnormal dreams 3%
  • Thinking abnormal 2%
More Remeron side effects »
How it works
PaxilRemeron
Paxil (Paroxetine) is a selective serotonin reuptake inhibitor (SSRI) antidepressant. It increases serotonin activity in the brain, which regulates mood.Remeron (Mirtazapine) is an atypical antidepressant. It stimulates your body to make certain chemicals in the brain, such as serotonin and norepinephrine, which regulate mood.
Type of medication
PaxilRemeron
Prescription only
Prescription only
Available as
PaxilRemeron
  • Pill
  • Extended release tablet
  • Liquid
  • Pill
  • Dissolving tablet
Used for
PaxilRemeron
Risk factors for serious side effects
PaxilRemeron
  • Age 24 years or younger
  • Using other medications that affect serotonin
  • Stopping Paxil (Paroxetine) suddenly
  • Taking other blood-thinning drugs
  • History of bipolar disorder
Detailed Paxil (paroxetine) risks & warnings »
  • Age 24 years or younger
  • Using other medications that affect serotonin
  • History of heart problems
  • History of liver problems
  • Higher dose
Detailed Remeron (mirtazapine) risks & warnings »
Pregnancy

Research studies with real people found harmful effects on unborn babies, but the benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Research studies with animals found harmful effects on unborn babies. It hasn’t been properly studied in humans. The benefits might outweigh the risks even if you’re pregnant. Talk with your doctor.

Food
PaxilRemeron
  • Take with food to avoid upset stomach.
No food related info.
Sleep
PaxilRemeron
  • It causes drowsiness, so it's good for people who have trouble sleeping.
No sleep related info.
Weight
PaxilRemeron
  • Can cause weight gain, which can be helpful if you've recently lost weight or have a low appetite.
  • More likely to cause minor weight gain (1 to 5 pounds) or make you feel sick if you miss a dose than other antidepressants.
  • More likely to cause minor weight gain (1 to 5 pounds) and raise cholesterol than any other antidepressant.
  • Can increase appetite and weight.
  • Remeron (Mirtazapine) can increase appetite and cause you to gain weight.
Upsides and benefits
PaxilRemeron
  • Effective at relieving depression and anxiety symptoms.
  • Lowers relapse rates of depression and anxiety disorders, including OCD, panic disorder, social anxiety disorder, and generalized anxiety disorder.
  • It causes drowsiness, so it's good for people who have trouble sleeping.
  • Can cause weight gain, which can be helpful if you've recently lost weight or have a low appetite.
  • Six out of ten people who use an antidepressant for the first time find that it works for them.
  • Effective at relieving some depression symptoms.
  • Starts to work more quickly than most antidepressants.
  • Might be a good option for people who have insomnia with their depression, because it can make you very sleepy.
  • Good option for people who are underweight or frail, because it can help you gain weight.
  • Six out of ten people who use an antidepressant for the first time find that it works for them.
Downsides and risks
PaxilRemeron
  • Can cause more sexual side effects like low libido and an inability to orgasm or ejaculate than most antidepressants.
  • More likely to cause minor weight gain (1 to 5 pounds) or make you feel sick if you miss a dose than other antidepressants.
  • Can harm an unborn child, so you can't take it if you're pregnant.
  • Like most antidepressants, it can cause a higher risk of suicidal thoughts and behavior for people younger than age 24.
  • 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.
  • Not as effective as other medications for depression.
  • More sedating than other antidepressants.
  • More likely to cause minor weight gain (1 to 5 pounds) and raise cholesterol than any other antidepressant.
  • 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.
Tips from our pharmacists for people taking the medication
PaxilRemeron
  • Take with food to avoid upset stomach.
  • Takes about 8 to 12 weeks to see the medication's full effects on your mood.
  • Stop taking it slowly to avoid getting withdrawal symptoms.
  • Tell your doctor if you notice sudden mood changes or unusual thoughts.
  • The controlled-release (CR) tablet can cause less nausea than other forms.
  • Don’t crush, break, or chew the Paxil (Paroxetine) controlled-release tablet or the Pexeva film-coated tablets.
  • It’s best to take Paxil (Paroxetine) in the morning, except Brisdelle, which can be taken at bedtime.
  • Makes you sleepy. Take at bedtime.
  • Can increase appetite and weight.
  • Takes 8 to 12 weeks to see full effects on mood.
  • Stop taking slowly to avoid withdrawal symptoms.
  • Tell your doctor if you notice sudden mood changes or unusual thoughts.
Learn more
More about PaxilSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Paxil (paroxetine)?
Worth itNot sureNot worth it
More about RemeronSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Remeron (mirtazapine)?
Worth itNot sureNot worth it