Common Xanax Side Effects


The most commonly reported Xanax side effects (click to view or check a box to report):

Anxiety (316)
Insomnia (192)
Depression (180)
Feeling Abnormal (153)
Somnolence (149)
Nausea (146)
Headache (141)
Malaise (128)
Fatigue (121)
Fall (119)
Dizziness (113)
Overdose (108)
Pain (99)
Dyspnoea (99)
Diarrhoea (98)
Suicide Attempt (95)
Convulsion (94)
Confusional State (93)
Hypertension (87)
Agitation (84)

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If you or someone in your family has experienced a serious side effect to a health product, you are encouraged to report the experience to your health care professional (e.g. physician, pharmacist). You could also complete a copy of the side effect reporting form or report your side effect to FDA.

Xanax Side Effects Reported to FDA



Xanax Side Effect Report#9997865
Hepatic Failure, Toxicity To Various Agents
This is a report of a 36-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: Unk, start time: NS), combined with:
  • Atarax (Unk)
  • Paracetamol (Unk)
and developed a serious reaction and side effect(s): Hepatic Failure, Toxicity To Various Agents after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Hepatic Failure side effect. The patient was hospitalized.
Xanax Side Effect Report#9983206
Grand Mal Convulsion, Psychogenic Seizure, Muscle Spasms, Pain In Extremity, Insomnia, Muscle Twitching, Dyskinesia, Treatment Noncompliance
This report suggests a potential Xanax Grand Mal Convulsion side effect(s) that can have serious consequences. A 47-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Xanax (dosage: Unk) starting 201402. After starting Xanax the patient began experiencing various side effects, including: Grand Mal Convulsion, Psychogenic Seizure, Muscle Spasms, Pain In Extremity, Insomnia, Muscle Twitching, Dyskinesia, Treatment NoncomplianceAdditional drugs used concurrently:
  • Requip (4 Mg Variable Dosing)
  • Requip (4 Mg, 1x/day)
  • Requip Xl (Unk)
  • Requip Xl (2 Mg, Once A Night)
  • Requip Xl (4 Mg, Daily)
  • Requip Xl (4 Mg, Unk)
  • Paxil (Unk)
  • Buspar (Unk)
Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Grand Mal Convulsion, may still occur.
Xanax Side Effect Report#9964421
Vomiting
This Vomiting problem was reported by a physician from IT. A 27-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Oct 12, 2013 this consumer started treatment with Xanax (dosage: Unk). The following drugs were being taken at the same time: NA. When using Xanax, the patient experienced the following unwanted symptoms/side effects: VomitingThe patient was hospitalized.Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Vomiting, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9922165
This Death side effect was reported by a consumer or non-health professional from PE. A 56-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Xanax (drug dosage: Unk), which was initiated on NS. Concurrently used drugs: NA..After starting to take Xanax the consumer reported adverse symptoms, such as: These side effects may potentially be related to Xanax.
Xanax Side Effect Report#9921808
Overdose, Bradycardia, Hypotension, Vomiting, Somnolence, Hypotonia
This is a report of a 28-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: 1 To 3 Tablets Daily, start time:
Jan 28, 2014), combined with: NA. and developed a serious reaction and side effect(s): Overdose, Bradycardia, Hypotension, Vomiting, Somnolence, Hypotonia after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Overdose side effect. The patient was hospitalized.
Xanax Side Effect Report#9919195
Suicide Attempt, Intentional Overdose
This report suggests a potential Xanax Suicide Attempt side effect(s) that can have serious consequences. A 32-year-old female patient (weight: NA) from IT was diagnosed with the following symptoms/conditions: NA and used Xanax (dosage: 10 Mg, Daily) starting
Feb 02, 2014. After starting Xanax the patient began experiencing various side effects, including: Suicide Attempt, Intentional OverdoseAdditional drugs used concurrently:
  • Sertraline Hcl (450 Mg, Daily)
  • Quetiapine (Unk)
  • Flurazepam Hydrochloride (Unk)
The patient was hospitalized. Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Suicide Attempt, may still occur.
Xanax Side Effect Report#9916724
Suicide Attempt, Malaise
This Suicide Attempt problem was reported by a physician from US. A 49-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: anxiety. On NS this consumer started treatment with Xanax (dosage: 1 Mg, As Needed). The following drugs were being taken at the same time:
  • Trazodone (100 Mg, 1x/day At Bedtime)
When using Xanax, the patient experienced the following unwanted symptoms/side effects: Suicide Attempt, MalaiseAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Suicide Attempt, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9916706
Confusional State, Delirium
This Confusional State side effect was reported by a physician from IT. A 45-year-old female patient (weight:NA) experienced the following symptoms/conditions: anxiety.The patient was prescribed Xanax (drug dosage: 30 Gtt, Unk), which was initiated on
Dec 18, 2013. Concurrently used drugs: NA..After starting to take Xanax the consumer reported adverse symptoms, such as: Confusional State, DeliriumThese side effects may potentially be related to Xanax. The patient was hospitalized.
Xanax Side Effect Report#9914138
Influenza, Blood Calcium Increased
This is a report of a 71-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: Unk, start time: NS), combined with:
  • Advil Pm (2 Df, 1x/day)
  • Centrum Silver Adults 50+ (Unk)
and developed a serious reaction and side effect(s): Influenza, Blood Calcium Increased after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Influenza side effect. The patient was hospitalized.
Xanax Side Effect Report#9914135
Atrial Fibrillation
This report suggests a potential Xanax Atrial Fibrillation side effect(s) that can have serious consequences. A 67-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: anxiety and used Xanax (dosage: 0.5 Mg, 1x/day) starting NS. After starting Xanax the patient began experiencing various side effects, including: Atrial FibrillationAdditional drugs used concurrently: NA. Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Atrial Fibrillation, may still occur.
Xanax Side Effect Report#9909574
Cardiac Fibrillation
This Cardiac Fibrillation problem was reported by a health professional from US. A 80-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: anxiety. On NS this consumer started treatment with Xanax (dosage: 0.5 Mg, Daily). The following drugs were being taken at the same time: NA. When using Xanax, the patient experienced the following unwanted symptoms/side effects: Cardiac FibrillationAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Cardiac Fibrillation, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9909573
Cardiac Fibrillation
This Cardiac Fibrillation side effect was reported by a health professional from US. A 73-year-old female patient (weight:NA) experienced the following symptoms/conditions: anxiety.The patient was prescribed Xanax (drug dosage: 0.5 Mg, Daily), which was initiated on NS. Concurrently used drugs: NA..After starting to take Xanax the consumer reported adverse symptoms, such as: Cardiac FibrillationThese side effects may potentially be related to Xanax.
Xanax Side Effect Report#9909558
Syncope, Coronary Artery Disease
This is a report of a 56-year-old female patient (weight: NA) from US, suffering from the following health symptoms/conditions: anxiety, who was treated with Xanax (dosage: 0.5 Mg, Daily, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Syncope, Coronary Artery Disease after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Syncope side effect. The patient was hospitalized.
Xanax Side Effect Report#9905381
Coma
This report suggests a potential Xanax Coma side effect(s) that can have serious consequences. A 38-year-old male patient (weight: NA) from FR was diagnosed with the following symptoms/conditions: NA and used Xanax (dosage: 0.5 Mg, Daily) starting
Oct 08, 2013. After starting Xanax the patient began experiencing various side effects, including: ComaAdditional drugs used concurrently: NA.The patient was hospitalized. Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Coma, may still occur.
Xanax Side Effect Report#9904351
Depression, Lethargy
This Depression problem was reported by a physician from US. A 82-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: anxiety. On NS this consumer started treatment with Xanax (dosage: 0.5 Mg, Daily). The following drugs were being taken at the same time: NA. When using Xanax, the patient experienced the following unwanted symptoms/side effects: Depression, LethargyAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Depression, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9901429
Suicide Attempt, Sopor
This Suicide Attempt side effect was reported by a physician from IT. A 67-year-old male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Xanax (drug dosage: 60 Ml, Total), which was initiated on
Nov 14, 2013. Concurrently used drugs:
  • Ramipril
  • Crestor
.After starting to take Xanax the consumer reported adverse symptoms, such as: Suicide Attempt, SoporThese side effects may potentially be related to Xanax. The patient was hospitalized.
Xanax Side Effect Report#9899671
Suicide Attempt
This is a report of a 42-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: Unk, start time: 201306), combined with: NA. and developed a serious reaction and side effect(s): Suicide Attempt after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Suicide Attempt side effect. The patient was hospitalized.
Xanax Side Effect Report#9892281
Fall, Fracture, Asthenia, Pyrexia, Respiratory Distress, Wound, Mood Altered
This report suggests a potential Xanax Fall side effect(s) that can have serious consequences. A 91-year-old female patient (weight: NA) from FR was diagnosed with the following symptoms/conditions: NA and used Xanax (dosage: 0.125 Mg, 1x/day) starting
Dec 03, 2013. After starting Xanax the patient began experiencing various side effects, including: Fall, Fracture, Asthenia, Pyrexia, Respiratory Distress, Wound, Mood AlteredAdditional drugs used concurrently: NA.The patient was hospitalized. Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Fall, may still occur.
Xanax Side Effect Report#9889720
Psoriatic Arthropathy, Abasia, Diabetic Neuropathy, Gait Disturbance, Pain
This Psoriatic Arthropathy problem was reported by a consumer or non-health professional from US. A 49-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Xanax (dosage: Unk). The following drugs were being taken at the same time:
  • Protonix (40 Mg, Daily)
  • Lyrica (150 Twice A Day (no Units Provided))
  • Lisinopril (20 Mg, Unk)
  • Atenolol (25 Mg, Unk)
  • Lasix (Unk)
  • Allopurinol (Unk)
  • Prednisone (Unk)
  • Methotrexate (Unk)
When using Xanax, the patient experienced the following unwanted symptoms/side effects: Psoriatic Arthropathy, Abasia, Diabetic Neuropathy, Gait Disturbance, PainAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Psoriatic Arthropathy, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9885490
Off Label Use, Malaise, Dependence, Amyotrophy, Aggression, Cold Sweat, Loss Of Libido, Tremor
This Off Label Use side effect was reported by a consumer or non-health professional from FR. A 50-year-old female patient (weight:NA) experienced the following symptoms/conditions: tachycardia.The patient was prescribed Xanax (drug dosage: NA), which was initiated on 2000. Concurrently used drugs: NA..After starting to take Xanax the consumer reported adverse symptoms, such as: Off Label Use, Malaise, Dependence, Amyotrophy, Aggression, Cold Sweat, Loss Of Libido, TremorThese side effects may potentially be related to Xanax.
Xanax Side Effect Report#9885489
Coma, Dyskinesia, Electroencephalogram Abnormal, Respiratory Disorder, Amnesia, Toxicity To Various Agents, Toxicity To Various Agents, Alcohol Interaction, Livedo Reticularis
This is a report of a 50-year-old male patient (weight: NA) from FR, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: 0.50 Mg, 2 Tablets Daily, start time: NS), combined with:
  • Zolpidem Tartrate (2 Df, Daily)
  • Effexor (1 Df, Daily)
  • Combivir (150 Mg / 300 Mg, 1 Df, Daily)
  • Viramune (1 Df, Daily)
and developed a serious reaction and side effect(s): Coma, Dyskinesia, Electroencephalogram Abnormal, Respiratory Disorder, Amnesia, Toxicity To Various Agents, Toxicity To Various Agents, Alcohol Interaction, Livedo Reticularis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in male patients, resulting in Coma side effect. The patient was hospitalized.
Xanax Side Effect Report#9885468
Escherichia Infection, Metastasis, Spinal Fracture, Confusional State, Panic Attack, Agitation, Dysarthria, Orthostatic Hypotension, Fall
This report suggests a potential Xanax Escherichia Infection side effect(s) that can have serious consequences. A 81-year-old female patient (weight: NA) from FR was diagnosed with the following symptoms/conditions: NA and used Xanax (dosage: 0.25 Mg, 1x/day) starting 201308. After starting Xanax the patient began experiencing various side effects, including: Escherichia Infection, Metastasis, Spinal Fracture, Confusional State, Panic Attack, Agitation, Dysarthria, Orthostatic Hypotension, FallAdditional drugs used concurrently:
  • Imovane (7.5 Mg, 1x/day)
  • Topalgic (150 Mg, 2x/day)
  • Triatec (5 Mg, 1x/day)
  • Rythmol ^biosedra^ (300 Mg, 2x/day)
  • Piascledine (300 Mg, 1x/day)
  • Laroxyl (25 Mg, 1x/day)
  • Calciparin (6500 Iu, 2x/day)
The patient was hospitalized. Although Xanax demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Escherichia Infection, may still occur.
Xanax Side Effect Report#9879414
Coeliac Disease, Pain, Therapeutic Response Unexpected
This Coeliac Disease problem was reported by a consumer or non-health professional from US. A 53-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: anxiety. On 1990 this consumer started treatment with Xanax (dosage: 0.5 Mg, Four To Five Times A Day). The following drugs were being taken at the same time:
  • Alprazolam (Unk)
  • Lyrica (Unk)
When using Xanax, the patient experienced the following unwanted symptoms/side effects: Coeliac Disease, Pain, Therapeutic Response UnexpectedAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Coeliac Disease, may become evident only after a product is in use by the general population.
Xanax Side Effect Report#9867972
This Foetal Death side effect was reported by a physician from CH. A 28-year-old female patient (weight:NA) experienced the following symptoms/conditions: depression.The patient was prescribed Xanax (drug dosage: Unk), which was initiated on 2011. Concurrently used drugs:
  • Fluctine (Unk)
.After starting to take Xanax the consumer reported adverse symptoms, such as: These side effects may potentially be related to Xanax.
Xanax Side Effect Report#9859926
Intentional Overdose, Suicide Attempt
This is a report of a 30-year-old female patient (weight: NA) from LT, suffering from the following health symptoms/conditions: NA, who was treated with Xanax (dosage: Unk, start time:
Nov 10, 2013), combined with:
  • Ibuprom (Unk)
and developed a serious reaction and side effect(s): Intentional Overdose, Suicide Attempt after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Xanax treatment in female patients, resulting in Intentional Overdose side effect. The patient was hospitalized.


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The appearance of Xanax on this list does not mean that FDA has concluded that the drug has the listed risk. It means that FDA has identified a potential safety issue, but it does not mean that FDA has found a causal relationship between the drug and the listed risk.

What are common Xanax Side Effects for Women?

Women Side Effects Reports
Anxiety 210
Insomnia 118
Nausea 117
Depression 115
Feeling Abnormal 105
Headache 98
Malaise 89
Somnolence 86
Fall 83
Dyspnoea 82

What are common Xanax Side Effects for Men?

Men Side Effects Reports
Anxiety 105
Insomnia 71
Depression 65
Somnolence 59
Feeling Abnormal 46
Agitation 44
Headache 43
Overdose 43
Loss Of Consciousness 42
Fatigue 39

Track Your Side Effects

Note Your Observations

It is really important to keep track of your health symptoms, right from the time you start a new medicine. You can do it any way you prefer: in a notebook, in a computer file or using our online tool. You should also note down any other medicines you are taking at the same time, because there could be an interaction between these medicines.

Why Your Notes are Important

Your notes could be helpful in several ways:

  • You can use them to remind you of details that may alert your health care professional(s) to a problem
  • You will have a record to refer to in the future, in case you are ever prescribed the same medicine again

  • Log Form

    You can use the following log form to write down important information, like the date and time you experienced a side effect and your symptoms, how strong the symptoms were, and any other medicines you were using.

    Medicine Name and Dosage:
    Side Effects Scale Date & Time Other Medicine(s) or Treatment(s)
    Scale: 1 = very mild to 10 = very bad

    Side effects reports are analyzed to discover potential health product safety signals. Some important reactions may take an extremely long time to develop or occur infrequently. Continued monitoring of adverse reactions is thus essential to maintain a comprehensive safety and effectiveness profile of health products.

    You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.

    Xanax reports list potential signals of serious risks and new safety information that were identified using the FDA Adverse Event Reporting System (FAERS).
    FAERS is a database that contains information on adverse event and medication errors reports submitted to FDA by healthcare professionals (such as physicians, pharmacists, nurses and others), consumers (such as patients, family members, layers and others) and manufacturers.

    Discuss Xanax Side Effects

    Did You Have a Xanax Side Effect?

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    How Effective is Xanax for You?

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    Xanax Safety Alerts, Active Ingredients, Usage Information

    NDC 0009-0029
    Type HUMAN PRESCRIPTION DRUG
    Proprietary Name Xanax
    Name alprazolam
    Dosage Form TABLET
    Route ORAL
    On market since 19811016
    Labeler Pharmacia and Upjohn Company
    Active Ingredient(s) ALPRAZOLAM
    Strength(s) 0.25
    Unit(s) mg/1
    Pharma Class Benzodiazepine [EPC],Benzodiazepines [Chemical/Ingredient]

    Xanax Dosage, Warnings, Usage.

    Side Effects reported to FDA: 2847

    Xanax safety alerts: 2007

    Reported deaths: 222

    Reported hospitalizations: 1119

    Xanax (alprazolam)

    Audience: Consumers, healthcare professionals

    [Posted 02/16/2007] FDA informed consumers and healthcare professionals regarding the possible dangers of buying prescription medications online. Individuals who ordered Ambien, Xanax, Lexapro, and Ativan over the internet received a product that contained haloperidol, a powerful anti-psychotic drug. Several consumers experienced difficulty in breathing, muscle spasms and muscle stiffness after ingesting the suspect product and had to seek emergency medical treatment. Haloperiodol can cause muscle stiffness, spasms, agitation and sedation. Taking medication that contains an active ingredient other than what is prescribed by qualified healthcare professionals is generally unsafe. FDA urges consumers to review the FDA website for additional information prior to making purchases of medications over the internet (http://www.fda.gov/buyonline/).

    [February 16, 2007 - News Release - FDA]

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