Compare Celexa vs. Remeron

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

Celexa
(Citalopram)

Remeron
(mirtazapine)

Improves mood and helps you relax. Celexa (Citalopram) is good for treating depression and anxiety. Might be less likely to cause side effects than some antidepressants, but not the best choice for people with heart or liver problems.Improves mood. Remeron (mirtazapine) improves your mood and helps you sleep better, but can cause more weight gain than any other antidepressant.
Reviews & ratings
Filter group. All currently selected
Filter group. All currently selected
4.98Celexa
Reviews for Celexa
61%
of people (All ages) say Celexa is worth it
51%
say it works well
16%
say it's a big hassle
520 reviews
Have you used Celexa (Citalopram)?
Worth itNot sureNot worth it
Reviews for Remeron
45%
+16% better vs. Celexa
39%
+12% better vs. Celexa
26%
+10% better vs. Celexa
152 reviews
Have you used Remeron (mirtazapine)?
Worth itNot sureNot worth it
Side effects
CelexaRemeron
  • Fever 2%
  • Arthralgia 1%
  • Myalgia 1%
  • Yawning 2%
  • Upper Respiratory Tract Infection 2%
  • Abdominal Pain 1%
  • Agitation 2%
  • Dysmenorrhea 1%
  • Impotence 3%
More Celexa side effects »
  • Back pain 1%
  • Swelling in limbs 1%
  • Muscle pain 1%
  • Tremor 1%
  • Confusion 2%
  • Urinary frequency 1%
  • Abnormal thinking 2%
  • Abnormal dreams 3%
  • Flu syndrome 2%
  • Dizziness 4%
More Remeron side effects »
How it works
CelexaRemeron
Celexa (Citalopram) 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
CelexaRemeron
Prescription onlyLower-cost generic availablePrescription onlyLower-cost generic available
Available as
CelexaRemeron
  • Pill
  • Oral solution
  • Pill
  • Dissolving tablet
Used for
CelexaRemeron
Risk factors for serious side effects
CelexaRemeron
  • Age 24 years or younger
  • Using other medications that affect serotonin
  • History of bipolar disorder
  • At risk for bipolar disorder
  • Stopping Celexa (Citalopram) suddenly
Detailed Celexa (Citalopram) 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 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.

Interactions
CelexaRemeron
No interactions related info.
  • Prescription medications can interact with Remeron (mirtazapine). Let your doctor or pharmacist know if you're on prescription medications currently or within the past 14 days.
Food
CelexaRemeron
  • Take with food to avoid upset stomach.
No food related info.
Kidneys and liver
CelexaRemeron
  • Not a good option for you if you have heart or liver problems.
No kidneys and liver related info.
Sex
CelexaRemeron
  • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
No sex related info.
Sleep
CelexaRemeron
No sleep related info.
  • Remeron (mirtazapine) can make you sleepy. It is best to take at bedtime.
  • Can help you fall asleep if you have trouble sleeping.
  • Makes you more tired than other antidepressants.
Weight
CelexaRemeron
  • Can cause minor weight gain (1 to 5 pounds).
  • Remeron (mirtazapine) can raise your appetite and cause you to gain weight. Remeron (mirtazapine) can also raise your cholesterol.
  • Remeron (mirtazapine) can increase your appetite and cause to you to gain weight.
  • Good option if you are underweight or frail, because it can help you gain weight.
  • More likely to cause minor weight gain (1-5 pounds) and raise cholesterol than any other antidepressant.
Upsides and benefits
CelexaRemeron
  • Effective at relieving depression and anxiety symptoms.
  • Causes less sleepiness compared to other antidepressants.
  • 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.
  • 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 and risks
CelexaRemeron
  • Can cause sexual side effects like low libido and an inability to orgasm or ejaculate.
  • Can cause minor weight gain (1 to 5 pounds).
  • Celexa (Citalopram) can cause an irregular heartbeat if you take a high dose (40 mg a day, or more).
  • Not a good option for you if you have heart or liver problems.
  • Like most antidepressants, it can cause a higher risk of suicidal thoughts and behavior for people younger than 24 years.
  • 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.
  • Makes you more tired than other antidepressants.
  • More likely to cause minor weight gain (1-5 pounds) and raise cholesterol than any other antidepressant.
Tips from our pharmacists for people taking the medication
CelexaRemeron
  • 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.
  • Remeron (mirtazapine) can make you sleepy. It is best to take at bedtime.
  • Remeron (mirtazapine) can increase your appetite and cause to you to gain weight.
  • You should not abruptly stop Remeron (mirtazapine) as this could cause serious side effects.
  • Prescription medications can interact with Remeron (mirtazapine). Let your doctor or pharmacist know if you're on prescription medications currently or within the past 14 days.
  • Remeron (mirtazapine) should be protected from light. Keep it in it's original package until ready to use.
  • Remeron (mirtazapine) can cause dry mouth. Try using sugar-free gum or candy to help with dry mouth.
Learn more
More about CelexaSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Celexa (Citalopram)?
Worth itNot sureNot worth it
More about RemeronSide effectsReviews & ratingsAlternativesFDA package insert
Have you used Remeron (mirtazapine)?
Worth itNot sureNot worth it