DrugInformer Search


Popular Brands: : Mirtazapine, Remeron, Norset, Remergil, Zispin
Official FDA Reports123,656
Social Media Events6,242
Total Posts5,113
Avg. Review Score3.27/ 5
Active Ingredients
  • Mirtazapine
Brands and Other Names
Show more brands
  • Organon Usa Inc
  • Organon Usa Inc.
  • Teva Pharmaceuticals Usa Inc

  This report is for all products sharing this active ingredient. For more details, please use our Workbench for research on individual brands like Mirtazapine.

* Extracted from FDA Adverse Event Report


The quarterly trend chart illustrates changing levels of adverse events over time. Results from both the FDA Adverse Event Database (FAERS) and adverse events extracted from social media by Druginformer are plotted side-by-side for easy comparison.

The proportion of people completing user reviews who complained about a side effect.

The proportion of social media adverse event complaints for each adverse event type.

The proportion of FAERS (FDA) adverse event complaints for each adverse event type.

Mirtazapine Side Effects

  Social Media
(Online Comments)
(Reports Submitted to FDA)
Side Effect On Drug
Reports % of
Alarm Reports % of

* DrugInformer calculates alarm using a proprietary algorithm. Alarm should not be taken as an ofiicial signal from the FDA or other regulatory entity.

User Voices

The following are comments from users that experienced side effects while taking Mirtazapine


Mirtazapine Side-Effect Watch: Jumpiness ! The slightest sound is making me jump 10 feet in the air!

Source: JohnUK89/statuses/194056263343157248

View full report on Mirtazapine related nervousness

Did the author experience nervousness while taking mirtazapine?

What is this?

Suicidal Ideation

I have a new one for that too. Put on mirtazapine to help with PMT. Told doc I was having suicidal thoughts since....

Source: petersmam/statuses/193627598314668032

View full report on Mirtazapine related suicidal ideation

Did the author experience suicidal ideation while taking mirtazapine?

What is this?

Oropharyngeal Pain

I'm taking mirtazapine & this is 4th week, got awful sore throat but It only starts about 45 mins after I take the tablet x

Source: sarahmowat/statuses/192712821883150336

View full report on Mirtazapine related oropharyngeal pain

Did the author experience oropharyngeal pain while taking mirtazapine?

What is this?

Tell us about your Experience with Mirtazapine

Thank you for sharing your experience with us!

Share Your Experience

Druginformer Identified Side Effects: Brain injury

Effectiveness Rating:     Overall Rating:

Posted By Bálint on September 25, 2017 @ 3:23 am

his drug is poison and can cause irreversible brain damage.

Druginformer Identified Side Effects: Increased appetite, Anhedonia

Posted By Anonymous in askapatient.com on August 31, 2015 @ 12:00 am

Side Effects: Anhedonia, increased appetite, great for sleep (for a little while at least). Initially prescribed after a bad reaction to Lexapro, mirtazapine worked for a while, then gave m...

Druginformer Identified Side Effects: Appetite disorder, Somnolence

Posted By Anonymous in askapatient.com on August 16, 2015 @ 12:00 am

Side Effects: Very sleepy when it kicks in & I'm up eating all night if I don't fall asleep after taking it. This helped me gain 25lbs that I lost due to anxiety. This is a miracle drug. I ...

Druginformer Identified Side Effects: Nausea, Pruritus, Urticaria, Anger, Increased appetite, Drug ineffective, Irritability, Rash, Somnolence

Posted By Anonymous in askapatient.com on August 5, 2015 @ 12:00 am

Side Effects: Trying to taper off this drug from 45mg to 30mg. When i first started on it at 30mg i got very irritable and angry. Increased to 45mg because of chronic anxiety. All i can say is that i...

Druginformer Identified Side Effects: Constipation, Agitation, Skin reaction, Diarrhoea, Oedema, Haemorrhage

Posted By Anonymous in askapatient.com on August 3, 2015 @ 12:00 am

Side Effects: woke up to feeling like my arms and neck were on fire. bright red, felt puffy. a few days later I had such extreme constipation I bled from my rectum. took several weeks to feel righ...

Druginformer Identified Side Effects: Agitation, Throat tightness

Posted By Anonymous in askapatient.com on July 24, 2015 @ 12:00 am

Side Effects: Morning agitation, trouble swallowing Took it for a very short time because it probably caused trouble swallowing. Didn't up the dose as I was supposed to. Helped me sleeping ...

Druginformer Identified Side Effects: Fatigue, Dizziness

Posted By Anonymous in askapatient.com on June 28, 2015 @ 12:00 am

Slept very well the first time i took it at 15Mg, stayed at dose for 6 months, then went up 2 nights ago to 30Mg. Feeling very tired and dizzy. thankfully i only take it for sleep. My a...

Druginformer Identified Side Effects: Abnormal weight gain, Weight increased, Decreased appetite

Posted By sup in fdb.rxlist.com on May 28, 2015 @ 12:00 am

... attack since starting it. It also puts me to sleep every night which is highly appreciated. The downside: weight gain. I do not eat more than before I started, and yet I gained weight all year. I'd...

Druginformer Identified Side Effects: Hunger

Posted By Anonymous in askapatient.com on May 15, 2015 @ 12:00 am

Side Effects: Extreme hunger Didn't work on my anxiety or depression, was so hungry it made me preoccupied with food. The one good thing was having deep 10-12 hour sleeps especially at 7.5 ...

Druginformer Identified Side Effects: Headache, Pruritus, Dry skin, Hypoaesthesia, Anxiety, Hypochondriasis, Sleep paralysis, Binge eating, Depersonalisation, Hallucination, Migraine, Muscle spasms, Muscle twitching, Panic attack, Rash, Suicidal ideation, Weight increased

Posted By Anonymous in askapatient.com on May 12, 2015 @ 12:00 am

... mouth and nose, Dryness in face. Anxiety and panic, hallucinations at night when trying to sleep. Purplish visuals and weird tactile hallucinations. Headaches, depersonalization, suicidal thoughts, it...

Additional Drug Information

* Warning: The facts and figures contained in these reports are accurate to the best of our capability; however, our metrics are only meant to augment your medical knowledge, and should never be used as the sole basis for selecting a new medication. As with any medical decision, be sure to work with your doctor to ensure the best choices are made for your condition.

* About FAERS: The FDA Adverse Event Reporting System (FAERS) is used by FDA for activities such as looking for new safety concerns that might be related to a marketed product, evaluating a manufacturer's compliance to reporting regulations and responding to outside requests for information. Reporting of adverse events is a voluntary process, and not every report is sent to FDA and entered into FAERS. The FAERS database may contain duplicate reports, the report quality is variable, and many factors may influence reporting (e.g., media attention, length of time a drug is marketed, market share). For these reasons, FAERS case reports cannot be used to calculate incidence or estimates of risk for a particular product or compare risks between products.