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Metamizol Side Effects

Common Metamizol Side Effects

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

Diarrhoea (7)
Pleural Effusion (7)
Left Ventricular Failure (6)
Anaemia (6)
Aplasia Pure Red Cell (5)
Hyponatraemia (5)
Agranulocytosis (5)
Nausea (5)
Right Ventricular Failure (5)
Pain (5)
Fatigue (4)
Anal Fissure (4)
Hepatic Enzyme Increased (4)
Dyspnoea (4)
Hypopnoea (4)
Muscle Twitching (4)
Vomiting (4)
Pyrexia (4)
Varicose Vein (3)
Weight Decreased (3)

➢ More



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.

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.

Metamizol Side Effects Reported to FDA

The following Metamizol 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.


The appearance of Metamizol 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.
Pancytopenia
on Oct 01, 2012 Female from DE , 87 years of age, weighting 101.4 lb, was diagnosed with and was treated with Metamizol. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: pancytopenia. Metamizol dosage: 20 Gtt, Tid.
Associated medications used:
  • Risperidon (0.5 Mg, Unk)
  • Pantoprazol (20 Mg, Unk)
  • Amlodipin (5 Mg, 0-0-1)
  • Lorazepam (0.5 Mg, Unk)
Patient was hospitalized.

Human Herpes Virus 6 Serology Positive, Rash Erythematous, Lymphadenopathy, Rash Maculo-papular, Lymphocyte Transformation Test Positive, Dermatitis, Hepatic Enzyme Increased, Pruritus
Patient was taking Metamizole. Patient felt the following Metamizol side effects: human herpes virus 6 serology positive, rash erythematous, lymphadenopathy, rash maculo-papular, lymphocyte transformation test positive, dermatitis, hepatic enzyme increased, pruritus on Jun 27, 2012 from SPAIN Additional patient health information: Female , 43 years of age, was diagnosed with and. Metamizole dosage: 2 G, Q6h.
Multiple prescriptions taken:
  • Piperacillin/tazobactam (4/0.5 G Every 12 Hour)
  • Acetaminophen (1 G, Q6h)


Eye Swelling, Oedema Peripheral, Antinuclear Antibody Increased, Arthralgia, Erythema, Myalgia, Abscess, Cutaneous Tuberculosis
Adverse event was reported on Jun 18, 2012 by a Male taking Metamizole (Dosage: Three Times A Day) . Location: GERMANY , 46 years of age, After Metamizol was administered, patient encountered several Metamizol side effects: eye swelling, oedema peripheral, antinuclear antibody increased, arthralgia, erythema, myalgia, abscess, cutaneous tuberculosis.
Multiple concurrent drugs taken:
  • Remicade
  • Remicade
  • Remicade
  • Prednisolone
  • Allopurinol
  • Ibuprofen (Twice Daily)
  • Cefuroxime Axetil
  • Pantoprazole
Patient was hospitalized.

Tumour Pain
on Jun 22, 2012 Male from SPAIN , 62 years of age, was treated with Metamizol. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: tumour pain. Metamizol dosage: N/A.
Associated medications used:
  • Micardis
  • Dexamethasone
  • Oxycodone Hcl
  • Ipilimumab
  • Zoladex
  • Metoclopramide Hydrochloride
  • Enoxaparin
  • Furosemide
Patient was hospitalized.


Diarrhoea, Vomiting, Weight Decreased, Dyspepsia, Nausea
on Apr 15, 2011 Female from UNITED STATES , 54 years of age, was treated with Metamizol. Patient felt the following Metamizol side effects: diarrhoea, vomiting, weight decreased, dyspepsia, nausea. Metamizol dosage: N/A.
Multiple prescriptions taken:
  • Oxycodone Hcl
  • Bupropion Hcl
  • Zofran
  • Xeloda
  • Protonix
  • Xgeva
  • Tykerb (1250mg Per Day)
  • Citalopram Hydrobromide


Faecaloma, Hyperglycaemia, Perineal Pain
Patient was taking Metamizole (metamizole). After Metamizol was administered, patient encountered several Metamizol side effects: faecaloma, hyperglycaemia, perineal pain on Sep 11, 2008 from UNITED STATES Additional patient health information: Male , 83 years of age, . Metamizole (metamizole) dosage: N/A.
Multiple concurrent drugs taken:
  • Ibuprofen
  • Tamsulosin Hcl
  • Cp-751, 871 (1280 Milligram) ((1280 Mg, 1 In 3 Wk), Intravenous)
  • Prednisone ((123.9 Mg, 1 In 3 Wk), Intravenous)
  • Actiq
  • Decapepyl
  • Magnesium Hydroxide Tab
  • Docetaxel (1in 3 Weeks , Intravenous)
Patient was hospitalized.

Intervertebral Disc Protrusion, Nerve Root Lesion, Osteoarthritis
Adverse event was reported on Apr 05, 2012 by a Female taking Metamizol (Dosage: N/A) . Location: GERMANY , 70 years of age, weighting 172.0 lb, Directly after, patient experienced the unwanted or unexpected Metamizol side effects: intervertebral disc protrusion, nerve root lesion, osteoarthritis.
Associated medications used:
  • Actemra (Last Dose Prior To Sae:15/mar/2012)
Patient was hospitalized.

Maternal Exposure During Pregnancy, Oligohydramnios, Syncope, Premature Delivery
on Mar 21, 2012 Female from SPAIN , 23 years of age, was diagnosed with and was treated with Metamizole. Patient felt the following Metamizol side effects: maternal exposure during pregnancy, oligohydramnios, syncope, premature delivery. Metamizole dosage: 2 G, Q8h.
Multiple prescriptions taken:
  • Amoxicillin And Clavulanate Potassium


Toxic Epidermal Necrolysis
on Mar 12, 2012 Female from GERMANY , 59 years of age, was treated with Metamizole. After Metamizol was administered, patient encountered several Metamizol side effects: toxic epidermal necrolysis. Metamizole dosage: N/A.
Multiple concurrent drugs taken:
  • Piperacillin And Tazobactam


Disease Progression, Eastern Cooperative Oncology Group Performance Status Worsened
Patient was taking Metamizol. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: disease progression, eastern cooperative oncology group performance status worsened on Mar 07, 2012 from GERMANY Additional patient health information: Male , weighting 163.1 lb, was diagnosed with and. Metamizol dosage: Dose = 130.0 Units Not Specified.
Associated medications used:
  • Leuprolide Acetate (Dose = 130.0 Units Not Specified)
  • Utk Uno (Dose = 130.0 Units Not Specified)
  • Calcium-sandoz D Osteo (Dose = 130.0 Units Not Specified)
  • Abiraterone Acetate
  • Prednisolone
  • Ciprofloxacin (Dose = 130.0 Units Not Specified)
  • Fentanyl (Start Date = 08-nov-2010)
Patient was hospitalized and became disabled.

Gastroenteritis
Adverse event was reported on Feb 29, 2012 by a Female taking Metamizole (Dosage: N/A) was diagnosed with and. Location: GERMANY , weighting 189.6 lb, Patient felt the following Metamizol side effects: gastroenteritis.
Multiple prescriptions taken:
  • Nsaid's
  • Metoprolol Succinate
  • Tapentadol Hydrochloride (Twice A Day)


Pain, Pyrexia
on Feb 21, 2012 Female from POLAND , weighting 132.3 lb, was treated with Metamizol. After Metamizol was administered, patient encountered several Metamizol side effects: pain, pyrexia. Metamizol dosage: 500mg Three Times Per Day. Patient was hospitalized.

Hydrocephalus, Anaemia
on Feb 17, 2012 Male from GERMANY , 54 years of age, weighting 194.0 lb, was treated with Metamizol. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: hydrocephalus, anaemia. Metamizol dosage: N/A.
Associated medications used:
  • Dexamethasone Sodium Phosphate
  • Restex (100/25 Mg)
  • Fentanyl (12 Mg/hour)
  • Pantoprazole
  • Vemurafenib (Last Dos Eprior To Sae 21 Nov 2011)
  • Ibuprofen
  • Moviprep
  • Zoledronic Acid
Patient was hospitalized.

Deep Vein Thrombosis
Patient was taking Metamizol Natrii. Patient felt the following Metamizol side effects: deep vein thrombosis on Sep 06, 2011 from RUSSIAN FEDERATION Additional patient health information: Female , 66 years of age, was diagnosed with and. Metamizol Natrii dosage: 2 Ml.
Multiple prescriptions taken:
  • Ketoprofen (300 Mg)
  • Indapamidum
  • Pradaxa (220 Mg)
  • Tramadol Hydrochloride And Acetaminophen (225 Mg/1950 Mg)
  • Omeprazole (20 Mg)
  • Cefazolin (2000 Mg)
  • Diphenhydraminum (1 Mg)
  • Midazolam (5 Mg)
Patient was hospitalized.

Pyrexia, Pain
Adverse event was reported on Feb 07, 2012 by a Female taking Metamizol (Dosage: 500mg Three Times Per Day) . Location: POLAND , weighting 132.3 lb, After Metamizol was administered, patient encountered several Metamizol side effects: pyrexia, pain.
Multiple concurrent drugs taken:
  • Vinorelbine Tartrate (20mgm2 Cyclic)
Patient was hospitalized.

Neoplasm Malignant, Dehydration, Hyponatraemia, Diarrhoea
on Feb 13, 2012 Female from ROMANIA , 32 years of age, was treated with Metamizole. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: neoplasm malignant, dehydration, hyponatraemia, diarrhoea. Metamizole dosage: 1df=1 Vial.
Associated medications used:
  • Zometa
  • Yervoy
  • Morphine Sulfate
Patient was hospitalized.

Oedema Peripheral, Pulmonary Oedema, Cough, Cardiac Failure Congestive, Hypertension, Dilatation Ventricular, Dyspnoea
on Jan 30, 2012 Female from GERMANY , weighting 130.1 lb, was diagnosed with and was treated with Metamizole. Patient felt the following Metamizol side effects: oedema peripheral, pulmonary oedema, cough, cardiac failure congestive, hypertension, dilatation ventricular, dyspnoea. Metamizole dosage: N/A.
Multiple prescriptions taken:
  • Afinitor (10 Mg, Per Day)
  • Steroids Nos (1333 Mg, Prednisolone Equivalent)
  • Proton Pump Inhibitors
  • Omeprazole (40 Mg, Daily)
Patient was hospitalized.

Cholecystectomy
Patient was taking Metamizole. After Metamizol was administered, patient encountered several Metamizol side effects: cholecystectomy on Jan 26, 2012 from SPAIN Additional patient health information: Female , weighting 156.5 lb, was diagnosed with and. Metamizole dosage: N/A.
Multiple concurrent drugs taken:
  • Calcium With Vitamin D
  • Celecoxib
  • Nebivolol Hcl
  • Alendronate Sodium
  • Prednisone Tab
  • Folic Acid
  • Omeprazole
  • Omeprazole
Patient was hospitalized.

Acute Coronary Syndrome
Adverse event was reported on Jan 23, 2012 by a Male taking Metamizole (Dosage: 375 Mg, As Needed) was diagnosed with and. Location: SPAIN , 78 years of age, weighting 185.2 lb, Directly after, patient experienced the unwanted or unexpected Metamizol side effects: acute coronary syndrome.
Associated medications used:
  • Cyclophosphamide (50 Mg, 1x/day)
  • Prednisone Tab (Tdd 10 Mg)
  • Sunitinib Malate (25 Mg, 1x/day)
  • Enalapril (5 Mg, 1x/day)
  • Metoclopramide (Unk)
  • Metoclopramide
  • Amiloride Hcl And Hydrochlorothiazide (5 Mg/ 50 Mg 1x/day)
  • Omeprazole (10 Mg, 1x/day)
Patient was hospitalized.

Agranulocytosis
on Jan 19, 2012 Male from DENMARK , 26 years of age, was diagnosed with and was treated with Metamizole (metamizole). Patient felt the following Metamizol side effects: agranulocytosis. Metamizole (metamizole) dosage: 500 Mg; ; Po.
Multiple prescriptions taken:
  • Tramadol Hydrochloride (100 Mg; ; Po)
  • Ibuprofen (600 Mg; ; Po)
  • Pregabalin (300 Mg; ; Po)
  • Amoxicillin
Patient was hospitalized.

Pain In Extremity, Nausea, Dyspnoea, Angina Pectoris, Hyponatraemia, Restlessness, Productive Cough, Agitation
on Jan 26, 2012 Female from GERMANY , 69 years of age, was diagnosed with and was treated with Metamizol. After Metamizol was administered, patient encountered several Metamizol side effects: pain in extremity, nausea, dyspnoea, angina pectoris, hyponatraemia, restlessness, productive cough, agitation. Metamizol dosage: 1000 Mg, Unk.
Multiple concurrent drugs taken:
  • Dipiperon (120 Mg, 1x/day)
  • Altace (7.5 Mg, 1x/day)
  • Haloperidol (10 Mg, 1x/day)
Patient was hospitalized.

Electrolyte Depletion, Hyponatraemia, Hypokalaemia, Syncope, Prothrombin Time Prolonged
Patient was taking Metamizol Natrium. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: electrolyte depletion, hyponatraemia, hypokalaemia, syncope, prothrombin time prolonged on Jan 11, 2012 from GERMANY Additional patient health information: Male , 79 years of age, weighting 127.9 lb, was diagnosed with and. Metamizol Natrium dosage: 500 Mg, Unk.
Associated medications used:
  • Ramipril (1.25 Mg, Qd)
  • Pantoprazole (40 Mg, Qd)
  • Risperidone (0.5 Mg, Qd)
  • Simvastatin (40 Mg, Qd)
  • Torsemide (10 Mg, Qd)
  • Aldactone (25 Mg, Qd)
  • Falithrom ^hexal^ (Unk)
  • Metoclopramide (20 Gtt, Tid)
Patient was hospitalized.

Sinus Bradycardia, Blood Pressure Decreased
Adverse event was reported on Dec 21, 2010 by a Female taking Metamizole (metamizole) (Dosage: N/A) . Location: SWITZERLAND , 48 years of age, weighting 112.4 lb, Patient felt the following Metamizol side effects: sinus bradycardia, blood pressure decreased.
Multiple prescriptions taken:
  • Citalopram Hydrobromide (20 Mg Per Day,oral)
  • Tizanidine Hydrochloride (12 Mg (2 X 6 Mg Per Day) Oral; 06 Mg Daily; Oral)
  • Tranxilium (clorazepate Dispotassium)
  • Acetaminophen
  • Lyrica (300 Mg (2 X 150 Mg Per Day), Oral)
  • Bulboid (glycerol)
  • Importal (lactitol)
  • Oxycodone Hcl (10 Mg (2 X 5 Mg Per Day) Oral)


Constipation, Colonic Stenosis
on Jan 05, 2012 Female from GERMANY , weighting 134.5 lb, was diagnosed with and was treated with Metamizol. After Metamizol was administered, patient encountered several Metamizol side effects: constipation, colonic stenosis. Metamizol dosage: 4x/die.
Multiple concurrent drugs taken:
  • Pantoprazole Sodium (Bid)
  • Humira (80 Mg In Week 0; 40 Mg In Week 2; 40 Mg Eow)
  • Fraxiparin (Od)
Patient was hospitalized.

Agranulocytosis
on Jan 04, 2012 Male from GERMANY , 26 years of age, weighting 209.4 lb, was diagnosed with and was treated with Metamizol. Directly after, patient experienced the unwanted or unexpected Metamizol side effects: agranulocytosis. Metamizol dosage: N/A.
Associated medications used:
  • Ibuprofen
  • Ibuprofen
  • Amoxicillin
  • Tramadol Hcl
  • Pregabalin
Patient was hospitalized.

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Why Your Notes are Important

Your notes could be helpful in several ways:

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  • Log Form

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    Medicine Name and Dosage:

     

    Side Effects

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    Other Medicine(s) or Treatment(s)

     

     

     

     

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    More About Metamizol

    Side Effects reported to FDA: 84

    Metamizol safety alerts: No

    Reported deaths: 7

    Reported hospitalizations: 27

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