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Mirtazapine Agitation Side Effects

Mirtazapine Agitation Side Effect Reports


The following Mirtazapine Agitation side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Agitation, can occur, and what you can do about them.

A side effect could appear soon after you start Mirtazapine or it might take time to develop.



Pancreatitis Acute, Vomiting, Agitation, Nausea

This Agitation side effect was reported by a pharmacist from CA. A 14-year-old patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Mirtazapine (dosage: 50 Mg, Qd), which was started on NS. Concurrently used drugs:
  • Acetaminophen
  • Chlorpromazine
  • Desmopressin
  • Famotidine
  • Lansoprazole (Delay Release)
  • Lithium
  • Lorazepam
  • Melatonin
When starting to take Mirtazapine the consumer reported the following symptoms:
  • Pancreatitis Acute
  • Vomiting
  • Agitation
  • Nausea
The patient was hospitalized. These side effects may potentially be related to Mirtazapine.
Completed Suicide, Dissociation, Agitation, Insomnia, Emotional Distress, Anxiety, Depression, Malaise, Dizziness

This Agitation Mirtazapine side effect was reported by a consumer or non-health professional from GB on Nov 13, 2013. A Female , 65 years of age, weighting 140.0 lb, was diagnosed with and was treated with Mirtazapine. The patient presented the following health conditions:
  • Completed Suicide
  • Dissociation
  • Agitation
  • Insomnia
  • Emotional Distress
  • Anxiety
  • Depression
  • Malaise
  • Dizziness
. Mirtazapine dosage: At Night. Additional drugs used at the same time: NA.
Completed Suicide, Agitation, Anxiety, Insomnia, Dizziness, Dry Eye, Emotional Distress, Fear, Feeling Abnormal

This is a Mirtazapine side effect report of a 65-year-old female patient (weight:NA) from GB, suffering from the following symptoms/conditions: depression, who was treated with Mirtazapine (dosage:NA, start time: Apr 23, 2013), combined with: NA., and developed a serious reaction and a Agitation side effect. The patient presented with:
  • Completed Suicide
  • Agitation
  • Anxiety
  • Insomnia
  • Dizziness
  • Dry Eye
  • Emotional Distress
  • Fear
  • Feeling Abnormal
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mirtazapine treatment in female patients suffering from depression, resulting in Agitation.

Agitation, Irritability, Mood Swings, Nightmare

A 34-year-old patient (weight: NA) from GB with the following symptoms: NA started Mirtazapine (mirtazapine) treatment (dosage: NA) on Apr 19, 2013. Soon after starting Mirtazapine (mirtazapine) treatment, the consumer experienced several side effects, including:
  • Agitation
  • Irritability
  • Mood Swings
  • Nightmare
. Concurrently used drugs:
  • Diazepam (diazepam)
  • Trazodone (trazodone)
This finding indicates that some patients can be more vulnerable to developing Mirtazapine (mirtazapine) side effects, such as Agitation.
Irritability, Mood Swings, Agitation, Nightmare

A patient from GB was prescribed and started Mirtazapine on Oct 30, 2013. Patient felt the following Mirtazapine side effects: irritability, mood swings, agitation, nightmare Additional patient health information: male , 34 years of age, weighting 143.7 lb, The consumer reported the following symptoms: . Mirtazapine dosage: Unk Ukn, Unk. Concurrently used drugs:
  • Trazodone (Unk Ukn, Unk)
  • Diazepam (Unk Ukn, Unk)
Cyanosis, Depression, Suicidal Ideation, Nightmare, Agitation, Anxiety, Decreased Appetite, Hallucinations, Mixed, Blood Sodium Decreased

This report suggests a potential Mirtazapine Agitation side effect(s) that can have serious consequences. A 31-year-old female patient from GB (weight:NA) was diagnosed with the following health condition(s): depression,sedation and used Mirtazapine (dosage: 30 Mg, Qd) starting Jul 25, 2011. Soon after starting Mirtazapine the patient began experiencing various side effects, including:
  • Cyanosis
  • Depression
  • Suicidal Ideation
  • Nightmare
  • Agitation
  • Anxiety
  • Decreased Appetite
  • Hallucinations, Mixed
  • Blood Sodium Decreased
Drugs used concurrently:
  • Clonazepam (Unk)
  • Lorazepam (1 Mg, Unk)
  • Lorazepam (1 Mg, Qid)
  • Procyclidine Hydrochloride (5 Mg, 3/1 Day)
  • Procyclidine Hydrochloride (Unk Unk, Qd)
  • Quetiapine Fumarate (300 Mg, Unk)
  • Seroxat (20 Mg, 3/1 Days)
  • Seroxat (20 Mg, Bid)
The patient was hospitalized and became disabled. Although Mirtazapine demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Agitation, may still occur.
Agitation, Confusional State

An adverse event was reported by a pharmacist on Sep 23, 2013 by a male taking Mirtazapine (dosage: 15 Mg, 1/1 Day) . Location: GB , 86 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Mirtazapine side effects: agitation, confusional state. Additional medications/treatments:
Associated medications used:
  • Aspirin
  • Felodipine
  • Finasteride
  • Losartan Potassium
  • Oxytetracycline
  • Tamsulosin Hydrochloride
The patient was hospitalized.
Mood Swings, Nightmare, Agitation

This Agitation problem was reported by a health professional from GB. A 34-year-old patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Mar 12, 2013 a consumer started treatment with Mirtazapine (dosage: NA). The following drugs/medications were being taken at the same time:
  • Trazodone
  • Diazepam
When commencing Mirtazapine, the patient experienced the following unwanted symptoms /side effects:
  • Mood Swings
  • Nightmare
  • Agitation
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Agitation, may become evident only after a product is in use by the general population.
Elevated Mood, Hypomania, Agitation

This is a Mirtazapine side effect report of a 18-year-old female patient (weight: NA) from GB. The patient developed the following symptoms/conditions: depression and was treated with Mirtazapine (dosage: 15 Mg, Unk) starting Jun 25, 2013. Concurrently used drugs:
  • Lamotrigine (25 Mg, Qd)
Soon after that, the consumer experienced the following of symptoms:
  • Elevated Mood
  • Hypomania
  • Agitation
This opens a possibility that Mirtazapine could cause Agitation and that some female patients may be more susceptible.
Confusional State, Agitation, Aggression, Catatonia, Hallucination, Auditory, Toxicity To Various Agents

This Agitation side effect was reported by a health professional from US on Jul 24, 2013. A patient from US , 62 years of age, was diagnosed with and was treated with Mirtazapine Tablets. Directly after treatment started, patient experienced the unwanted or unexpected Mirtazapine side effects: confusional state, agitation, aggression, catatonia, hallucination, auditory, toxicity to various agents. Mirtazapine Tablets dosage: NA.
Associated medications used:
  • Clozapine
  • Paracetamol
  • Salbutamol
  • Atenolol
  • Gemfibrozil
  • Glipizide
The patient was hospitalized. These side effects may potentially be related to Mirtazapine Tablets.
Irritability, Agitation, Mood Swings, Nightmare

This Agitation side effect was reported by a physician from GB. A 34-year-old patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Mirtazapine (dosage: Unk), which was started on Mar 19, 2013. Concurrently used drugs:
  • Diazepam (Unk)
  • Trazodone Hydrochloride (Unk)
When starting to take Mirtazapine the consumer reported the following symptoms:
  • Irritability
  • Agitation
  • Mood Swings
  • Nightmare
These side effects may potentially be related to Mirtazapine.
Nightmare, Mood Swings, Agitation

This Agitation Mirtazapine side effect was reported by a physician from GB on Oct 31, 2013. A male , 34 years of age, weighting 143.7 lb, was treated with Mirtazapine. The patient presented the following health conditions:
  • Nightmare
  • Mood Swings
  • Agitation
. Mirtazapine dosage: NA. Additional drugs used at the same time:
  • Diazepam (diazepam)
  • Trazodone (trazodone)
Agitation, Mood Swings, Nightmare, Irritability

This is a Mirtazapine side effect report of a 34-year-old patient (weight:NA) from GB, suffering from the following symptoms/conditions: NA, who was treated with Mirtazapine (dosage:NA, start time: Mar 19, 2013), combined with:
  • Diazepam
  • Trazodone
, and developed a serious reaction and a Agitation side effect. The patient presented with:
  • Agitation
  • Mood Swings
  • Nightmare
  • Irritability
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Mirtazapine treatment in patients suffering from NA, resulting in Agitation.
Nightmare, Mood Swings, Agitation

A 34-year-old patient (weight: NA) from GB with the following symptoms: NA started Mirtazapine treatment (dosage: NA) on Mar 12, 2013. Soon after starting Mirtazapine treatment, the consumer experienced several side effects, including:
  • Nightmare
  • Mood Swings
  • Agitation
. Concurrently used drugs:
  • Trazodone
  • Diazepam
This finding indicates that some patients can be more vulnerable to developing Mirtazapine side effects, such as Agitation.
Agitation, Mood Swings, Nightmare

A patient from GB was prescribed and started Mirtazapine on Jul 05, 2013. After Mirtazapine was administered, patient encountered several Mirtazapine side effects: agitation, mood swings, nightmare Additional patient health information: male , 34 years of age, weighting 143.7 lb, The consumer reported the following symptoms: . Mirtazapine dosage: Unk. Concurrently used drugs:
  • Trazodone Hydrochloride (Unk)
  • Diazepam (Unk)
Hallucination, Visual, Agitation

This report suggests a potential Mirtazapine (mirtazapine) Agitation side effect(s) that can have serious consequences. A 82-year-old female patient from FR (weight:NA) was diagnosed with the following health condition(s): NA and used Mirtazapine (mirtazapine) (dosage: NA) starting NS. Soon after starting Mirtazapine (mirtazapine) the patient began experiencing various side effects, including:
  • Hallucination, Visual
  • Agitation
Drugs used concurrently:
  • Haloperidol (haloperidol) (haloperidol)
  • Risperidone (risperidone)
Although Mirtazapine (mirtazapine) demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Agitation, may still occur.
Hallucination, Visual, Agitation

An adverse event was reported by a health professional on Jun 03, 2013 by a Female taking Mirtazapine (dosage: 15 Mg, Daily) . Location: FR , 82 years of age, patient began experiencing various side effects, including: Patient felt the following Mirtazapine side effects: hallucination, visual, agitation. Additional medications/treatments:
Multiple prescriptions taken:
  • Haloperidol (0.5 Mg, Daily)
  • Risperidone (2 Mg, Daily)
Fear, Agitation, Hallucination, Auditory, Psychotic Disorder

This Agitation problem was reported by a physician from GB. A 48-year-old patient (weight: NA) was diagnosed with the following medical condition(s): depression.On Apr 03, 2013 a consumer started treatment with Mirtazapine (mirtazapine) (dosage: NA). The following drugs/medications were being taken at the same time:
  • Simvastatin (simvastatin)
  • Venlafaxine (venlafaxine)
  • Zopiclone (zopiclone)
When commencing Mirtazapine (mirtazapine), the patient experienced the following unwanted symptoms /side effects:
  • Fear
  • Agitation
  • Hallucination, Auditory
  • Psychotic Disorder
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Agitation, may become evident only after a product is in use by the general population.
Psychotic Disorder, Delusion, Fear, Hallucination, Auditory, Agitation

This is a Mirtazapine side effect report of a 48-year-old patient (weight: NA) from GB. The patient developed the following symptoms/conditions: depression and was treated with Mirtazapine (dosage: 15 Mg) starting Apr 03, 2013. Concurrently used drugs:
  • Venlafaxine
  • Simvastatin
  • Zopiclone
Soon after that, the consumer experienced the following of symptoms:
  • Psychotic Disorder
  • Delusion
  • Fear
  • Hallucination, Auditory
  • Agitation
This opens a possibility that Mirtazapine could cause Agitation and that some patients may be more susceptible.
Gait Disturbance, Speech Disorder, Dysarthria, Ataxia, Congestive Cardiomyopathy, Left Ventricular Dysfunction, Ventricular Hypokinesia, Ischaemic Stroke, Agitation

This Agitation side effect was reported by a health professional from ES on Apr 22, 2013. A patient from ES , 72 years of age, was diagnosed with and was treated with Mirtazapine (mirtazapine). Patient felt the following Mirtazapine side effects: gait disturbance, speech disorder, dysarthria, ataxia, congestive cardiomyopathy, left ventricular dysfunction, ventricular hypokinesia, ischaemic stroke, agitation. Mirtazapine (mirtazapine) dosage: NA.
Multiple prescriptions taken:
  • Mefloquine
These side effects may potentially be related to Mirtazapine (mirtazapine).
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Mirtazapine Agitation Causes and Reviews


Caring for someone who has Alzheimer's disease (AD) can be stressful and overwhelming. It's important to take care of yourself. Ask for and accept help.

Talk to the doctor. Find out what treatments might help control symptoms or address behavior problems. Find a support group. Others who have "been there" may be able to help and will understand.

If there are times of day that the person is less confused or more cooperative, take advantage of that in daily routines. Consider using adult day care or respite services. These offer a break with the peace of mind that the patient is being taken care of. Begin to plan for the future. This may include

  • Getting financial and legal documents in order
  • Looking into assisted living or nursing homes
  • Finding out what your health insurance and Medicare will cover

NIH: National Institute on Aging


Mirtazapine Agitation Reviews

Mon, 27 Sep 2010

Started on 15mg and now on 30 mg after two weeks. Feel absolutely awful. No energy, always tired and getting worse. Giving it a go as i'm told it will get better as body adjusts

Sat, 04 Sep 2010

I've been on this medication for 7 days (15mg). Right now it makes me verrrry sleepy about 40mins after I take it. I have excellent sleeps, but can sleep 12-14 hours if I don't set my alarm! The only other side effect I've experienced so far, is memory lapses. I'll go to the cupboard to get something, but then forget what I went to get (this happens at least twicea day).

Sat, 08 Jan 2011

Hi, I have been on mittazapine for 10 days, sleepy , tierd all the time and slugish in response to conversation just horrid feel gastly , head ace, The worst went to bed 11pm took the 15mg pill, went to the loo at 3am and collapsed on the bedroom floor damaging my back, I was told by the doctor my blood pressure had droped to low. NEVER AGAIN!!!!!!!!!!

Fri, 25 Feb 2011

I take Atenolol. Ramipril.Atorvastatin.Levothyroxine .Asprin.and Mirtazapine.Also a Glyceryl trinitrate spray as needed.I have dizziness,fatigue,muscle pain I itch at night , also i feel the cold more , sometimes have difficulty sleeping ,feeling anxious .Last night i dreamed i was a wake but a sleep at the same time but could not wake my self up . I have been to the Doc's drop the Mirtazapine down to 15mg . Also i have a frozzen shoulder . The Doc said it will take time ,at 59 how long is time well he did give me another sick note for 2 months .you have got to smile. on ESA for the last 8 months and still going

Mon, 23 Aug 2010

this med sucks and it will kill you... real talk

Tue, 21 Sep 2010

The above comment is too stupid, I actually LOLed at you Pete... lol you gave it 2 days and your complaining about the side-effects? and on 15 mgs? LMAO!!! It takes couple weeks at least to cope with the side-effects; just like many other drug. What is this; your first ever prescription medication? Your comment is misleading for others and very stupid.

I was on 45 mgs Mirtazipine for 2 years and even when I stopped abruptly I experienced zero to none of the withdrawal symptoms people are talking about... (but that might just be me, everyone is diff, however I never heard anyone dying from taking this medication. Unless combined with Benzos, pain killers and alcohol at the same time as it will def in that case cause severe CNS Depression and consequently death.

I would take 30 mg at nighttime for anxiety/insomnia and 15mgs in the mornings or after lunch. It is an excellent antidepressant, however you munch out a lot while on it, and you def put of more weight than before you start the medication. So, if weight gain is an issue for you, stay away from this one. Talk to your physician about alternate choices. Probably the best is Welbutrin if you weight is an issue for you.

Thu, 24 Mar 2011

the effects on my system where wide andvariedfirst thing i noticed where vividdreamsmore to the pointnight terrorstheymanifestedin aterror-strickensensation.Icould herewhatwas going on around me but waspowerlessto move I live alone and I amnearly50years old but I could hear myselfshoutingfor help but there was no one.Ifelt that if i did not move and soonI woulddie, then I started putting lots of weight on and haveclimbedupto 18 stone, then mouth ulcers and gum disorders then to cap it off I GOT WIDESPREADParesthesia,I only needed themoriginalyto help me sleep as my darling wife of 32 years told me i wassurplus torequirements, and that after 15 years as a coal miner,BUT YOU KNOW. I STILL LOVE HER VERY MUCHwewhere school sweethearts pathetic I know. as for thE mirtaz I have of course stopped taking them.I laterfoundouttheyarealsoprescribedfor p.t.s.s,and now i'm toembarrassedto leave my flat.anywaylet this be a warning to others. thanks for taking the time to read this and get them banned TTFN

Tue, 24 Jan 2012

Hi, I just started Mirtazapine in 11/11 because of the sensitivity of my body and how it reacts to medications I had to start at a low dosage (15mg cut into 4 pc. for 3.75mg) I have recently increased my dosage to 7.5mg (1/2 15mg tablet) I have experienced weight gain (20lbs in one month) breast enlargement, blurred vision, angered easily and we just did a blood panel and I am showing elevated liver enzymes more than 3 times the high amount, we have done a ultra sound and my liver looks great I also have no accompanying symptems (i.e. jaundice, dark urine)! However I am also getting low HCT (hematocrit) and feel very tired at times. Low hematocrit is a sign of anemia however I clot just fine and am not an excessive bleeder. I also have noticed swelling in my extremities exspecially my hands. I follow up with the Dr on 2/7/12 to do another CBC.

Wed, 13 Oct 2010

Wery tired and sleepy during the day, but suffering from insomnia at night.

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Mirtazapine Side Effects

Completed Suicide (237)
Confusional State (206)
Hyponatraemia (180)
Depression (160)
Overdose (148)
Anxiety (147)
Fall (136)
Dizziness (130)
Agitation (130)
Condition Aggravated (123)
Somnolence (117)
Insomnia (113)
Headache (110)
Serotonin Syndrome (109)
Suicidal Ideation (107)
Fatigue (105)
Loss Of Consciousness (104)
Convulsion (103)
Aggression (103)
Suicide Attempt (100)
Nausea (96)
Oedema Peripheral (93)
Dyspnoea (92)
Weight Increased (90)
Tachycardia (90)
Tremor (84)
Malaise (82)
Vomiting (75)
Restless Legs Syndrome (75)
Myalgia (73)
Alanine Aminotransferase Increased (72)
Cardiac Arrest (71)
Inappropriate Antidiuretic Hormone Secretion (71)
Feeling Abnormal (70)
Toxicity To Various Agents (69)
Asthenia (69)
Diarrhoea (67)
Syncope (62)
Hyperhidrosis (61)
Neuroleptic Malignant Syndrome (61)
Pain In Extremity (61)
Electrocardiogram Qt Prolonged (60)
Pyrexia (59)
Aspartate Aminotransferase Increased (58)
Pulmonary Embolism (57)
Arthralgia (56)
Hypotension (56)
Irritability (56)
Pain (55)
Gait Disturbance (54)

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