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Effexor Aggression Side Effects

Effexor Aggression Side Effect Reports


The following Effexor Aggression side effect reports were submitted by healthcare professionals and consumers.

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

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



Suicidal Ideation, Bipolar I Disorder, Aggression, Anger, Imprisonment, Dizziness, Anxiety

This Aggression side effect was reported by a health professional from CA. A 40-year-old patient (weight:NA) experienced the following symptoms/conditions: depression. The patient was prescribed Effexor (dosage: 35 Mg, 1x/day), which was started on 199904. Concurrently used drugs: NA. When starting to take Effexor the consumer reported the following symptoms:
  • Suicidal Ideation
  • Bipolar I Disorder
  • Aggression
  • Anger
  • Imprisonment
  • Dizziness
  • Anxiety
These side effects may potentially be related to Effexor.
Bipolar Disorder, Aggression

This Aggression Effexor Xr side effect was reported by a consumer or non-health professional from US on Jan 09, 2014. A Female , 59 years of age, weighting 111.8 lb, was diagnosed with and was treated with Effexor Xr. The patient presented the following health conditions:
  • Bipolar Disorder
  • Aggression
. Effexor Xr dosage: 300 Mg, 1x/day (150 Mg X 2 Capsules). Additional drugs used at the same time: NA.
Abnormal Behaviour, Disorientation, Slow Speech, Aggression, Fall, Cerebellar Syndrome, Somnolence, Pupillary Reflex Impaired

This is a Effexor side effect report of a 74-year-old patient (weight:NA) from FR, suffering from the following symptoms/conditions: depression,pain, who was treated with Effexor (dosage:75 Mg, Twice Daily, start time: Oct 04, 2013), combined with:
  • Tramadol Hcl (200 Mg, Once Daily)
  • Zopiclone (7.5 Mg, Once Daily)
  • Lexomil (12 Mg, Once Daily)
  • Diffu K (Unk)
  • Spironolactone (Unk)
  • Kardegic (Unk)
, and developed a serious reaction and a Aggression side effect. The patient presented with:
  • Abnormal Behaviour
  • Disorientation
  • Slow Speech
  • Aggression
  • Fall
  • Cerebellar Syndrome
  • Somnolence
  • Pupillary Reflex Impaired
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Effexor treatment in patients suffering from depression,pain, resulting in Aggression.

Aggression, Anger, Feeling Abnormal

A 31-year-old female patient (weight: NA) from US with the following symptoms: anxiety started Effexor treatment (dosage: Unk, 2x/day) on 201305. Soon after starting Effexor treatment, the consumer experienced several side effects, including:
  • Aggression
  • Anger
  • Feeling Abnormal
. Concurrently used drugs:
  • Albuterol (Unk)
This finding indicates that some patients can be more vulnerable to developing Effexor side effects, such as Aggression.
Aggression, Mood Swings, Decreased Appetite, Anxiety, Somnolence, Personality Change

A patient from US was prescribed and started Effexor on Mar 13, 2013. Patient felt the following Effexor side effects: aggression, mood swings, decreased appetite, anxiety, somnolence, personality change Additional patient health information: male , 45 years of age, weighting 180.0 lb, The consumer reported the following symptoms: was diagnosed with and. Effexor dosage: 75 Mg, 1x/day. Concurrently used drugs:
  • Lisinopril (Unk; Daily)
Hypomania, Mental Status Changes, Personality Change, Insomnia, Impulsive Behaviour, Aggression, Mental Disorder, Anxiety, Memory Impairment

This report suggests a potential Effexor Xr Aggression side effect(s) that can have serious consequences. A 43-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): depression and used Effexor Xr (dosage: 1 Dose Once A Day Po) starting NS. Soon after starting Effexor Xr the patient began experiencing various side effects, including:
  • Hypomania
  • Mental Status Changes
  • Personality Change
  • Insomnia
  • Impulsive Behaviour
  • Aggression
  • Mental Disorder
  • Anxiety
  • Memory Impairment
Drugs used concurrently:NA. Although Effexor Xr demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Aggression, may still occur.
Aneurysm, Ecchymosis, Nightmare, Aggression

An adverse event was reported by a consumer or non-health professional on Feb 11, 2013 by a Female taking Effexor (dosage: Unk) was diagnosed with and. Location: US , 65 years of age, weighting 107.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Effexor side effects: aneurysm, ecchymosis, nightmare, aggression. Additional medications/treatments:
Associated medications used:
  • Ranitidine (Unk)
  • Proair Hfa (Unk)
  • Spiriva (Unk)
  • Advair (Unk)
  • Zetia (Unk)
  • Simvastatin (Unk)
  • Metoprolol (Unk)
Emotional Disorder, Aggression, Anger, Irritability

This Aggression problem was reported by a consumer or non-health professional from UNITED STATES. A female patient (weight: NA) was diagnosed with the following medical condition(s): anxiety,hypothyroidism.On Nov 01, 2011 a consumer started treatment with Effexor Xr (dosage: 150 Mg, 1x/day). The following drugs/medications were being taken at the same time:
  • Synthroid (Unk)
  • Venlafaxine Hcl (150 Mg, 1x/day)
When commencing Effexor Xr, the patient experienced the following unwanted symptoms /side effects:
  • Emotional Disorder
  • Aggression
  • Anger
  • Irritability
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Aggression, may become evident only after a product is in use by the general population.
Toxicity To Various Agents, Headache, Liver Function Test Abnormal, Weight Decreased, Blood Pressure Increased, Anxiety, Confusional State, Aggression

This is a Effexor Xr side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: depression,pain and was treated with Effexor Xr (dosage: 37.5 Mg, Daily) starting Jan 01, 2006. Concurrently used drugs:
  • Excedrin (aspirin/caffeine/paracetamol) (Unk)
  • Trazodone Hcl (Unk)
Soon after that, the consumer experienced the following of symptoms:
  • Toxicity To Various Agents
  • Headache
  • Liver Function Test Abnormal
  • Weight Decreased
  • Blood Pressure Increased
  • Anxiety
  • Confusional State
  • Aggression
This opens a possibility that Effexor Xr could cause Aggression and that some female patients may be more susceptible.
Aggression, Panic Disorder, Depression, Diabetes Mellitus, Anxiety, Withdrawal Syndrome, Headache

This Aggression side effect was reported by a consumer or non-health professional from UNITED STATES on Mar 08, 2012. A female patient from UNITED STATES , weighting 180.0 lb, was treated with Effexor Xr. Directly after treatment started, patient experienced the unwanted or unexpected Effexor side effects: aggression, panic disorder, depression, diabetes mellitus, anxiety, withdrawal syndrome, headache. Effexor Xr dosage: Unk. These side effects may potentially be related to Effexor Xr.
Feeling Abnormal, Fatigue, Aggression, Mood Altered, Mood Swings, Anxiety

This Aggression side effect was reported by a consumer or non-health professional from UNITED STATES. A female patient (weight:NA) experienced the following symptoms/conditions: major depression,obsessive-compulsive disorder,anxiety,bipolar disorder. The patient was prescribed Effexor Xr (dosage: 225 Mg, Daily), which was started on Dec 01, 2011. Concurrently used drugs: NA. When starting to take Effexor Xr the consumer reported the following symptoms:
  • Feeling Abnormal
  • Fatigue
  • Aggression
  • Mood Altered
  • Mood Swings
  • Anxiety
These side effects may potentially be related to Effexor Xr.
Depression, Aggression, Diabetes Mellitus, Anxiety, Withdrawal Syndrome, Headache

This Aggression Effexor side effect was reported by a consumer or non-health professional from UNITED STATES on Feb 20, 2012. A Female , weighting 180.0 lb, was diagnosed with and was treated with Effexor. The patient presented the following health conditions:
  • Depression
  • Aggression
  • Diabetes Mellitus
  • Anxiety
  • Withdrawal Syndrome
  • Headache
. Effexor dosage: 75 Mg, 1x/day. Additional drugs used at the same time: NA.
Panic Attack, Agitation, Insomnia, Suicidal Ideation, Anxiety, Restlessness, Aggression, Mood Altered, Claustrophobia

This is a Effexor side effect report of a patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: depression,mood altered,aggression,agitation, who was treated with Effexor (dosage:150 Mg, 2x/day, start time: Dec 28, 2011), combined with: NA., and developed a serious reaction and a Aggression side effect. The patient presented with:
  • Panic Attack
  • Agitation
  • Insomnia
  • Suicidal Ideation
  • Anxiety
  • Restlessness
  • Aggression
  • Mood Altered
  • Claustrophobia
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Effexor treatment in patients suffering from depression,mood altered,aggression,agitation, resulting in Aggression.
Emotional Disorder, Feeling Abnormal, Personality Change, Aggression, Depression, Panic Attack, Withdrawal Syndrome, Thinking Abnormal

A female patient (weight: NA) from UNITED STATES with the following symptoms: depression started Effexor Xr treatment (dosage: 225 Mg, 1x/day) on Apr 01, 2009. Soon after starting Effexor Xr treatment, the consumer experienced several side effects, including:
  • Emotional Disorder
  • Feeling Abnormal
  • Personality Change
  • Aggression
  • Depression
  • Panic Attack
  • Withdrawal Syndrome
  • Thinking Abnormal
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Effexor Xr side effects, such as Aggression.
Anger, Decreased Appetite, Vertigo, Balance Disorder, Aggression, Paraesthesia

A patient from UNITED STATES was prescribed and started Effexor on Aug 30, 2011. After Effexor was administered, patient encountered several Effexor side effects: anger, decreased appetite, vertigo, balance disorder, aggression, paraesthesia Additional patient health information: male , 40 years of age, weighting 170.4 lb, The consumer reported the following symptoms: was diagnosed with and. Effexor dosage: 225 Mg Effexor 150 Am 75 Mg Noon By Mouth. Concurrently used drugs: NA.
Neuroleptic Malignant Syndrome, Aspartate Aminotransferase Increased, Tachycardia, Disturbance In Attention, Confusional State, Aggression, Blood Creatine Phosphokinase Increased, Myalgia, Infection

This report suggests a potential Effexor Xr Aggression side effect(s) that can have serious consequences. A 43-year-old patient from SWITZERLAND (weight:NA) was diagnosed with the following health condition(s): NA and used Effexor Xr (dosage: 150 Mg Daily) starting NS. Soon after starting Effexor Xr the patient began experiencing various side effects, including:
  • Neuroleptic Malignant Syndrome
  • Aspartate Aminotransferase Increased
  • Tachycardia
  • Disturbance In Attention
  • Confusional State
  • Aggression
  • Blood Creatine Phosphokinase Increased
  • Myalgia
  • Infection
Drugs used concurrently:
  • Novorapid
  • Calcimagon-d3 (One Dose Daily)
  • Haldol
  • Minirin (1 Df, 2x/day)
  • Topamax (50 Mg Daily)
  • Pantoprazole (40 Mg Daily)
  • Hydrocortisone Galepharm (10 Mg, 3x/day)
  • Levemir
The patient was hospitalized. Although Effexor Xr demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Aggression, may still occur.
Psychotic Disorder, Nightmare, Suicidal Ideation, Weight Increased, Feeling Abnormal, Aggression, Depression, Anxiety, Anger

An adverse event was reported by a physician on Mar 22, 2011 by a male taking Effexor (dosage: Unk) was diagnosed with and. Location: UNITED STATES , weighting 266.8 lb, patient began experiencing various side effects, including: Patient felt the following Effexor side effects: psychotic disorder, nightmare, suicidal ideation, weight increased, feeling abnormal, aggression, depression, anxiety, anger. Additional medications/treatments:
Multiple prescriptions taken:
  • Chlorthalidone (Unk)
  • Chantix (0.5 Mg, 1x/day)
  • Lisinopril (Unk)
  • Atenolol (Unk)
  • Simvastatin (Unk)
The patient was hospitalized.
Agitation, Blood Creatinine Increased, Aggression, Confusional State, Rhabdomyolysis

This Aggression problem was reported by a health professional from FRANCE. A 75-year-old patient (weight: NA) was diagnosed with the following medical condition(s): major depression.On Sep 06, 2010 a consumer started treatment with Effexor (dosage: 37.5 Mg, 2x/day). The following drugs/medications were being taken at the same time:
  • Lexomil (12 Mg, 1x/day)
  • Kardegic (75 Mg, 1x/day)
  • Equanil (250 Mg, 2x/day)
  • Zopiclone (7.5 Mg, 1x/day)
  • Tahor (10 Mg, 1x/day)
  • Ezetrol (10 Mg, 1x/day)
  • Atarax (25 Mg, 1x/day)
  • Adancor (20 Mg, 2x/day)
When commencing Effexor, the patient experienced the following unwanted symptoms /side effects:
  • Agitation
  • Blood Creatinine Increased
  • Aggression
  • Confusional State
  • Rhabdomyolysis
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Aggression, may become evident only after a product is in use by the general population.
Abnormal Behaviour, Aggression, Anger, Irritability

This is a Effexor Xr side effect report of a 40-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: depression and was treated with Effexor Xr (dosage: Tapered Off, Oral ; 225 Mg 1x Per 1 Day, Oral) starting Jan 01, 2004. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Abnormal Behaviour
  • Aggression
  • Anger
  • Irritability
This opens a possibility that Effexor Xr could cause Aggression and that some female patients may be more susceptible.
Aggression, Anxiety, Condition Aggravated, Depression, Dizziness, Mood Swings, Nausea

This Aggression side effect was reported by a consumer or non-health professional from UNITED STATES on Apr 26, 2010. A female patient from UNITED STATES , 28 years of age, weighting 145.1 lb, was diagnosed with and was treated with Effexor Xr. Patient felt the following Effexor side effects: aggression, anxiety, condition aggravated, depression, dizziness, mood swings, nausea. Effexor Xr dosage: 75 Mg 1x Per 1 Day ; 150 Mg 1x Per 1 Day. These side effects may potentially be related to Effexor Xr.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Effexor Aggression 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


Effexor Aggression Reviews

Sun, 06 May 2012

I'm experiencing severe dizyness almost do face plants to the ground a dozen times a day. Can't focus  when tryin to read.
Always confused and forgetfull .
about to loose my job if this shit continues.

Tue, 02 Oct 2012

all of the above plus hives massive weight gain....An evil drug...should be taken off the market!!

Mon, 02 May 2011

Thank you everyone. I am definitely going to tell my shrink that I need to get off Effexor
immediately. Does anyone out there also take lithium and temazapam(sleeping pill)?

Thu, 07 Jun 2012

Does anyone else feel that Effexor XR doesn't work as well when they are either having a bout of influenza or herpes, or another viral infection?  I get brain zaps even on my normal dosage (150mg/day) if I am experiencing a cold or herpes outbreak.

Wed, 04 Nov 2009
tendon tears Effexor?
Tue, 12 May 2009
Effexor raised my blood presure alot ,I had extreme painful headaches,rash that started on my face which was horrible,then spread to my chest,my neck was beat red I itched so badly.I think docotrs need to be more educated on this med before giveing it out so quickly.
Sun, 17 May 2009
Effexor was horrible for me...as soon as I started it I started having panic attacks worse than ever (supposed to help them) scary bad dreams, waking up in a sweat and not knowing who I was, then depression. The first day I expeirenced the panic attacks fast heartrate, I called my Dr. and he assured me that it could not have taken effect that fast, not true! He told me to keep takin the medicine, I trusted his word until I ended up in the hospital feeling like I was loosing my mind. I ended up going into a very deep depression. This was many years ago but I read some of the post and thought I would share my experience. If your told that there is no way that you could be feeling any interactions on the first day, use your own judgement, I trusted my Dr's word and I almost died.
Sat, 11 Jun 2011
I Lost my children because of this drug, i almost took my own life and a life of someone very close to me, I also have liver damage, who do these people think they are making these and giving them to people?
Wed, 02 Dec 2009
Effexor amp; Pristiq is poison - I would know, I started taking it at 16 yrs old, instead of counselling I was given Effexor by a 'psychiatrist drug dealer' I was never offered counselling. I spent of $25,000 on this medication in my lifetime. Discontinuation Syndrome has been my worst nightmare. The brain zaps are disgusting. I wish I could get all of the people who hate venlafaxine together to sue these pharmaceutical companies. They have earnt billions of dollars off the suffering of us and we are the only ones who pay.
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Condition Aggravated (471)
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Aggression (201)
Blood Pressure Increased (194)
Anger (193)
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Somnolence (180)
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Amnesia (150)
Intentional Overdose (136)
Irritability (135)
Abnormal Dreams (123)
Tinnitus (118)
Activities Of Daily Living Impaired (117)
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Loss Of Consciousness (111)
Panic Attack (111)
Arthralgia (110)
Nightmare (109)
Disorientation (108)
Off Label Use (106)
Overdose (106)
Emotional Disorder (105)

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