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Mirtazapine Asthenia Side Effects

Mirtazapine Asthenia Side Effect Reports


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

This information will help you understand how side effects, such as Asthenia, 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.



Malaise, Asthenia, Anaemia

This Asthenia side effect was reported by a health professional from IT. A 13-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Mirtazapine (dosage: 90 Mg, Once/single), which was started on Oct 09, 2012. Concurrently used drugs: NA. When starting to take Mirtazapine the consumer reported the following symptoms:
  • Malaise
  • Asthenia
  • Anaemia
The patient was hospitalized. These side effects may potentially be related to Mirtazapine.
Heart Rate Increased, Pyrexia, Asthenia, Hyperhidrosis, Oral Herpes, Thirst, Dysuria, Balance Disorder

This Asthenia Mirtazapine Teva side effect was reported by a consumer or non-health professional from SE on Mar 03, 2014. A male , 53 years of age, weighting 205.0 lb, was treated with Mirtazapine Teva. The patient presented the following health conditions:
  • Heart Rate Increased
  • Pyrexia
  • Asthenia
  • Hyperhidrosis
  • Oral Herpes
  • Thirst
  • Dysuria
  • Balance Disorder
. Mirtazapine Teva dosage: NA. Additional drugs used at the same time: NA.
Mental Status Changes, Asthenia, Blood Sodium Decreased, Cardiac Failure Congestive

This is a Mirtazapine side effect report of a 84-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: dementia, who was treated with Mirtazapine (dosage:15mg Bedtime Po, start time: Jun 16, 2013), combined with: NA., and developed a serious reaction and a Asthenia side effect. The patient presented with:
  • Mental Status Changes
  • Asthenia
  • Blood Sodium Decreased
  • Cardiac Failure Congestive
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Mirtazapine treatment in female patients suffering from dementia, resulting in Asthenia.

Hypopnoea, Fatigue, Altered State Of Consciousness, Pulse Abnormal, Asthenia

A patient (weight: NA) from TURKEY with the following symptoms: NA started Mirtazapine treatment (dosage: NA) on Mar 14, 2012. Soon after starting Mirtazapine treatment, the consumer experienced several side effects, including:
  • Hypopnoea
  • Fatigue
  • Altered State Of Consciousness
  • Pulse Abnormal
  • Asthenia
. Concurrently used drugs:
  • Trimethobenzamide Hcl
  • Lomotil (3 Tablets Daily)
  • Suboxone (4-8 Mg)
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Mirtazapine side effects, such as Asthenia.
Decreased Appetite, Musculoskeletal Chest Pain, Viral Pericarditis, Asthenia

A female patient from FRANCE was prescribed and started Mirtazapine on Mar 09, 2012. Patient felt the following Mirtazapine side effects: decreased appetite, musculoskeletal chest pain, viral pericarditis, asthenia Additional patient health information: Female , 46 years of age, The consumer reported the following symptoms: was diagnosed with and. Mirtazapine dosage: 1 Df; Qd 2 Df; Qd 3 Df;qd 2 Df; Qd;. Concurrently used drugs: NA. The patient was hospitalized.
Anaemia, Dysphemia, Dyspnoea, Anxiety, Tremor, Asthenia

This report suggests a potential Mirtazapine Asthenia side effect(s) that can have serious consequences. A 50-year-old patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Mirtazapine (dosage: NA) starting Oct 22, 2011. Soon after starting Mirtazapine the patient began experiencing various side effects, including:
  • Anaemia
  • Dysphemia
  • Dyspnoea
  • Anxiety
  • Tremor
  • Asthenia
Drugs used concurrently:
  • Pegasys
  • Ribavirin
  • Lithium Carbonate
  • Incivek (6 Other (2 Other, 3 In 1 D), Oral)
The patient was hospitalized. Although Mirtazapine demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Asthenia, may still occur.
Haemoglobin Decreased, Blood Creatinine Increased, Upper Respiratory Tract Infection, Glomerular Filtration Rate Decreased, Asthenia, Chills

An adverse event was reported by a consumer or non-health professional on Jan 16, 2012 by a Female taking Mirtazapine (dosage: 15 Mg, Oral) was diagnosed with and. Location: , 67 years of age, weighting 134.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Mirtazapine side effects: haemoglobin decreased, blood creatinine increased, upper respiratory tract infection, glomerular filtration rate decreased, asthenia, chills. Additional medications/treatments:
Associated medications used:
  • Atorvastatin (atorvastatin) [10005747 - Blood Pressure High] [v.14.1]
  • Felodipine (felodipine) [10005747 - Blood Pressure High] [v.14.1]
  • Metformin (metformin) [10012613 - Diabetes Mellitus Non-insulin-depend
  • Irbesartan (irbesartan) [10005747 - Blood Pressure High] [v.14.1]
The patient was hospitalized.
Pain, Asthenia, Depression, Irritability, Logorrhoea, Psychomotor Hyperactivity, Speech Disorder, Mania, Suicidal Ideation

This Asthenia problem was reported by a health professional from IN. A 42-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Mirtazapine (mirtazapine) (dosage: NA). The following drugs/medications were being taken at the same time:
  • Fluoxetine
  • Escitalopram Oxalate
When commencing Mirtazapine (mirtazapine), the patient experienced the following unwanted symptoms /side effects:
  • Pain
  • Asthenia
  • Depression
  • Irritability
  • Logorrhoea
  • Psychomotor Hyperactivity
  • Speech Disorder
  • Mania
  • Suicidal Ideation
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Asthenia, may become evident only after a product is in use by the general population.
Asthenia, Tremor, Dysgraphia, Movement Disorder, Fatigue

This is a Mirtazapine side effect report of a 70-year-old female patient (weight: NA) from SWEDEN. The patient developed the following symptoms/conditions: depression,memory impairment,anxiety and was treated with Mirtazapine (dosage: NA) starting NS. Concurrently used drugs:
  • Exelon (9.5mg/24 Hours)
  • Oxazepam
Soon after that, the consumer experienced the following of symptoms:
  • Asthenia
  • Tremor
  • Dysgraphia
  • Movement Disorder
  • Fatigue
This opens a possibility that Mirtazapine could cause Asthenia and that some female patients may be more susceptible.
Asthenia, Inappropriate Antidiuretic Hormone Secretion, Hyponatraemia

This Asthenia side effect was reported by a health professional from on Sep 28, 2011. A female patient from , 74 years of age, was treated with Mirtazapine. Directly after treatment started, patient experienced the unwanted or unexpected Mirtazapine side effects: asthenia, inappropriate antidiuretic hormone secretion, hyponatraemia. Mirtazapine dosage: NA. These side effects may potentially be related to Mirtazapine.
Asthenia, Hyponatraemia

This Asthenia side effect was reported by a health professional from FRANCE. A 74-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Mirtazapine (dosage: NA), which was started on NS. Concurrently used drugs: NA. When starting to take Mirtazapine the consumer reported the following symptoms:
  • Asthenia
  • Hyponatraemia
These side effects may potentially be related to Mirtazapine.
Hyperosmolar State, Hyponatraemia, Asthenia

This Asthenia Mirtazapine side effect was reported by a physician from FRANCE on Sep 28, 2011. A Female , 74 years of age, was treated with Mirtazapine. The patient presented the following health conditions:
  • Hyperosmolar State
  • Hyponatraemia
  • Asthenia
. Mirtazapine dosage: NA. Additional drugs used at the same time: NA.
Transient Ischaemic Attack, Balance Disorder, Asthenia, Feeling Drunk

This is a Mirtazapine side effect report of a 81-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: insomnia, who was treated with Mirtazapine (dosage:NA, start time: Jul 11, 2011), combined with:
  • Aspirin (Baby Aspirin)
, and developed a serious reaction and a Asthenia side effect. The patient presented with:
  • Transient Ischaemic Attack
  • Balance Disorder
  • Asthenia
  • Feeling Drunk
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 insomnia, resulting in Asthenia.
Muscular Weakness, Dysarthria, Suicidal Ideation, Asthenia, Respiratory Tract Infection, Agitation, Psychotic Disorder, Hallucination, Visual, Ataxia

A 84-year-old patient (weight: NA) from UNITED STATES with the following symptoms: NA started Mirtazapine treatment (dosage: 45 Mg At Bedtime, 30 Mg Qd) on NS. Soon after starting Mirtazapine treatment, the consumer experienced several side effects, including:
  • Muscular Weakness
  • Dysarthria
  • Suicidal Ideation
  • Asthenia
  • Respiratory Tract Infection
  • Agitation
  • Psychotic Disorder
  • Hallucination, Visual
  • Ataxia
. Concurrently used drugs:
  • Allopurinol (300 Mg Qd, 100 Mg Qd)
  • Donepezil (10 Mg, 5 Mg) (10 Mg Qd, 5 Mg Qd)
  • Risperidone (0.25 Mg Bid Prn)
  • Gabapentin
  • Omeprazole
  • Hydrochlorothiazide
  • Pravastatin
  • Bupropion Hydrochloride (150 Mg, 100 Mg, 75 Mg , 75 Mg ,100mg ) (150 Mg Bid, 100 Mg Bid, 75 Mg Bid, 75 Mg Qd, 100 Mg Bid)
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Mirtazapine side effects, such as Asthenia.
Mania, Disturbance In Attention, Fatigue, Asthenia, Depression, Malaise, Incontinence, Vision Blurred, Swollen Tongue

A female patient from UNITED KINGDOM was prescribed and started Mirtazapine on Sep 05, 2011. After Mirtazapine was administered, patient encountered several Mirtazapine side effects: mania, disturbance in attention, fatigue, asthenia, depression, malaise, incontinence, vision blurred, swollen tongue Additional patient health information: Female , 31 years of age, The consumer reported the following symptoms: . Mirtazapine dosage: 30 Mg, Qd. Concurrently used drugs:
  • Lorazepam (Unk Ukn, Unk)
  • Paroxetine Hcl (20 Mg, Bid)
  • Clonazepam (Unk Ukn, Unk)
  • Paroxetine Hcl (20 Mg, Tid)
  • Paroxetine Hcl (Unk Ukn, Unk)
  • Tramadol Hcl (Unk Ukn, Unk)
  • Procyclidine Hydrochloride 2mg Tab (Unk Ukn, Unk)
  • Quetiapine (Unk Ukn, Unk)
The patient was hospitalized and became disabled.
Irritability, Logorrhoea, Suicidal Ideation, Pain, Asthenia, Depressed Mood, Psychomotor Hyperactivity, Depression, Speech Disorder

This report suggests a potential Mirtazapine Asthenia side effect(s) that can have serious consequences. A 42-year-old female patient from INDIA (weight:NA) was diagnosed with the following health condition(s): depression and used Mirtazapine (dosage: (7.5 Mg,1 D)) starting NS. Soon after starting Mirtazapine the patient began experiencing various side effects, including:
  • Irritability
  • Logorrhoea
  • Suicidal Ideation
  • Pain
  • Asthenia
  • Depressed Mood
  • Psychomotor Hyperactivity
  • Depression
  • Speech Disorder
Drugs used concurrently:
  • Fluoxetine
  • Escitalopram ((20 Mg,1 D))
Although Mirtazapine demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Asthenia, may still occur.
Decreased Appetite, Aspartate Aminotransferase Increased, Alanine Aminotransferase Increased, Weight Decreased, Gamma-glutamyltransferase Increased, Asthenia

An adverse event was reported by a health professional on Jul 06, 2011 by a male taking Mirtazapine (dosage: 15 Mg) was diagnosed with and. Location: SPAIN , 63 years of age, patient began experiencing various side effects, including: Patient felt the following Mirtazapine side effects: decreased appetite, aspartate aminotransferase increased, alanine aminotransferase increased, weight decreased, gamma-glutamyltransferase increased, asthenia. Additional medications/treatments: The patient was hospitalized.
Hypotension, Acute Myocardial Infarction, Fatigue, Hypophagia, Asthenia, Pain, Faecal Incontinence, Dyspnoea, Sepsis

This Asthenia problem was reported by a pharmacist from UNITED STATES. A 71-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Oct 01, 2010 a consumer started treatment with Mirtazapine (dosage: NA). The following drugs/medications were being taken at the same time:
  • Loperamide
  • Tacrolimus
  • Zolpidem
  • Vitamin B Complex Cap
  • Revlimid (Revlimid 15mg Daily X14days Orally)
  • Octreotide Acetate
When commencing Mirtazapine, the patient experienced the following unwanted symptoms /side effects:
  • Hypotension
  • Acute Myocardial Infarction
  • Fatigue
  • Hypophagia
  • Asthenia
  • Pain
  • Faecal Incontinence
  • Dyspnoea
  • Sepsis
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Asthenia, may become evident only after a product is in use by the general population.
Suicide Attempt, Bipolar Disorder, Overdose, Asthenia, Altered State Of Consciousness, Hypertension, Depression, Type 2 Diabetes Mellitus

This is a Mirtazapine side effect report of a 46-year-old patient (weight: NA) from POLAND. The patient developed the following symptoms/conditions: bipolar disorder and was treated with Mirtazapine (dosage: Unk) starting Jan 01, 2005. Concurrently used drugs:
  • Citalopram (Unk)
  • Alprazolam
  • Amlodipine (10 Mg, Unk)
  • Lithium Carbonate (Unk)
  • Metformin Hydrochloride (Unk)
  • Cilazapril (5 Mg, Unk)
  • Furosemide (40 Mg, Unk)
  • Depakene (Unk)
Soon after that, the consumer experienced the following of symptoms:
  • Suicide Attempt
  • Bipolar Disorder
  • Overdose
  • Asthenia
  • Altered State Of Consciousness
  • Hypertension
  • Depression
  • Type 2 Diabetes Mellitus
The patient was hospitalized. This opens a possibility that Mirtazapine could cause Asthenia and that some patients may be more susceptible.
Balance Disorder, Muscular Weakness, Musculoskeletal Pain, Muscle Spasticity, Dysgraphia, Memory Impairment, Muscle Spasms, Asthenia, Coordination Abnormal

This Asthenia side effect was reported by a consumer or non-health professional from UNITED STATES on Dec 07, 2009. A female patient from UNITED STATES , 53 years of age, was diagnosed with and was treated with Mirtazapine. Patient felt the following Mirtazapine side effects: balance disorder, muscular weakness, musculoskeletal pain, muscle spasticity, dysgraphia, memory impairment, muscle spasms, asthenia, coordination abnormal. Mirtazapine dosage: NA.
Multiple prescriptions taken:
  • Tysabri
These side effects may potentially be related to Mirtazapine.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Mirtazapine Asthenia Causes and Reviews


We are sorry, but no medical information on this topic currently exists in our database. Our articles are updated often, please revisit soon.


Mirtazapine Asthenia 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

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Condition Aggravated (123)
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Dyspnoea (92)
Weight Increased (90)
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Malaise (82)
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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)
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Pyrexia (59)
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Hypotension (56)
Irritability (56)
Pain (55)
Gait Disturbance (54)

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