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Losec Side Effects

PatientsVille

Common Losec Side Effects


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

Nausea (14)
Hypomagnesaemia (14)
Dizziness (14)
Hypocalcaemia (11)
Vomiting (9)
Dyspnoea (9)
Diarrhoea (8)
Asthenia (8)
Dysphagia (7)
Abdominal Pain (7)
Abdominal Distension (6)
Headache (6)
Hypoparathyroidism (6)
Urticaria (5)
Chromaturia (5)
Chest Discomfort (5)
Multi-organ Disorder (4)
Myalgia (4)
Pruritus (4)
Tetany (4)

➢ 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.

Losec Side Effects Reported to FDA



Losec Side Effect Report#9835594
Exposure During Pregnancy, Hyperemesis Gravidarum, Tubulointerstitial Nephritis
This is a report of a 34-year-old female patient (weight: NA) from CA, suffering from the following health symptoms/conditions: NA, who was treated with Losec (dosage: NA, start time: NS), combined with:
  • Amoxicillin
  • Calcium
  • Clarithromycin
  • Immune Globulin Intravenous (human)
  • Prednisone
  • Pregvit
  • Vitamin D
and developed a serious reaction and side effect(s): Exposure During Pregnancy, Hyperemesis Gravidarum, Tubulointerstitial Nephritis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in female patients, resulting in Exposure During Pregnancy side effect. The patient was hospitalized.
Losec Side Effect Report#9655619
Decreased Appetite, Abdominal Discomfort
This report suggests a potential Losec Mups Decreased Appetite side effect(s) that can have serious consequences. A 75-year-old male patient (weight: NA) from CN was diagnosed with the following symptoms/conditions: gastritis and used Losec Mups (dosage: NA) starting 201306. After starting Losec Mups the patient began experiencing various side effects, including: Decreased Appetite, Abdominal DiscomfortAdditional drugs used concurrently:
  • Finasteride
Although Losec Mups demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Decreased Appetite, may still occur.
Losec Side Effect Report#9520879
Pleural Effusion, Dysuria, Vomiting, Chest Pain, Haemoptysis, Abdominal Distension, Swelling, Dyspnoea, Malaise
This Pleural Effusion problem was reported by a consumer or non-health professional from CA. A 86-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: appendicitis perforated. On 2005 this consumer started treatment with Losec (dosage: NA). The following drugs were being taken at the same time: NA. When using Losec, the patient experienced the following unwanted symptoms/side effects: Pleural Effusion, Dysuria, Vomiting, Chest Pain, Haemoptysis, Abdominal Distension, Swelling, Dyspnoea, MalaiseAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Pleural Effusion, may become evident only after a product is in use by the general population.
Losec Side Effect Report#9495751
Venous Occlusion, Pain, Discomfort
This Venous Occlusion side effect was reported by a consumer or non-health professional from CA. A 78-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Losec (drug dosage: NA), which was initiated on 1993. Concurrently used drugs:
  • Plavix
  • Zanex
  • Indapamide
  • Lipitor
  • Atenolol
  • Sucralfate
  • Ranitidine
.After starting to take Losec the consumer reported adverse symptoms, such as: Venous Occlusion, Pain, DiscomfortThese side effects may potentially be related to Losec. The patient was hospitalized.
Losec Side Effect Report#9443179
Cholelithiasis
This is a report of a 50-year-old male patient (weight: NA) from GB, suffering from the following health symptoms/conditions: NA, who was treated with Losec (dosage: NA, start time:
Jan 01, 2010), combined with:
  • Depixol (Flupenthixol Decanoate)
  • Depixol (Flupenthixol Hydrochloride)
  • Depixol (Flupenthixol Decanoate)
  • Depixol (Flupenthixol Hydrochloride)
and developed a serious reaction and side effect(s): Cholelithiasis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in male patients, resulting in Cholelithiasis side effect.
Losec Side Effect Report#9418039
Liver Function Test Abnormal
This report suggests a potential Losec Liver Function Test Abnormal side effect(s) that can have serious consequences. A 62-year-old male patient (weight: NA) from DE was diagnosed with the following symptoms/conditions: prophylaxis,back pain and used Losec (dosage: NA) starting
Apr 04, 2013. After starting Losec the patient began experiencing various side effects, including: Liver Function Test AbnormalAdditional drugs used concurrently:
  • Diclofenac
  • Vitamin C
Although Losec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Liver Function Test Abnormal, may still occur.
Losec Side Effect Report#9402787
Food Aversion, Crying
This Food Aversion problem was reported by a consumer or non-health professional from BR. A male patient (weight: NA) was diagnosed with the following symptoms/conditions: gastrooesophageal reflux disease. On
May 02, 2013 this consumer started treatment with Losec Mups (dosage: NA). The following drugs were being taken at the same time: NA. When using Losec Mups, the patient experienced the following unwanted symptoms/side effects: Food Aversion, CryingThe 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 Food Aversion, may become evident only after a product is in use by the general population.
Losec Side Effect Report#9331718
Blood Creatine Phosphokinase Increased, Myopathy, Pain In Extremity, Muscular Weakness
This Blood Creatine Phosphokinase Increased side effect was reported by a physician from DE. A 56-year-old male patient (weight:NA) experienced the following symptoms/conditions: reflux gastritis.The patient was prescribed Losec (drug dosage: NA), which was initiated on
Feb 16, 2007. Concurrently used drugs:
  • Amitriptyline
  • Co-codamol Eff.
  • Domperidone
  • Naproxen
.After starting to take Losec the consumer reported adverse symptoms, such as: Blood Creatine Phosphokinase Increased, Myopathy, Pain In Extremity, Muscular WeaknessThese side effects may potentially be related to Losec.
Losec Side Effect Report#9331458
Faeces Discoloured, Abdominal Pain Upper
This is a report of a 36-year-old male patient (weight: NA) from CN, suffering from the following health symptoms/conditions: gastric ulcer, who was treated with Losec (dosage: NA, start time: 201209), combined with: NA. and developed a serious reaction and side effect(s): Faeces Discoloured, Abdominal Pain Upper after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in male patients, resulting in Faeces Discoloured side effect.
Losec Side Effect Report#9313404
Renal Cancer, Barrett^s Oesophagus, Oesophageal Ulcer, Off Label Use
This report suggests a potential Losec Renal Cancer side effect(s) that can have serious consequences. A 63-year-old male patient (weight: NA) from AU was diagnosed with the following symptoms/conditions: gastrooesophageal reflux disease and used Losec (dosage: NA) starting 2011. After starting Losec the patient began experiencing various side effects, including: Renal Cancer, Barrett^s Oesophagus, Oesophageal Ulcer, Off Label UseAdditional drugs used concurrently: NA. Although Losec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Renal Cancer, may still occur.
Losec Side Effect Report#9312921
Blood Potassium Decreased, Scoliosis, Sinusitis
This Blood Potassium Decreased problem was reported by a consumer or non-health professional from BR. A 18-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: gastritis prophylaxis. On 2007 this consumer started treatment with Losec Mups (dosage: Every Morning). The following drugs were being taken at the same time:
  • Slow-k
  • Potassium Chloride (Three Times A Day)
  • Valpakine
  • Hidantal
  • Aldactone (Three Times A Day)
  • Magnesium Sulfate
When using Losec Mups, the patient experienced the following unwanted symptoms/side effects: Blood Potassium Decreased, Scoliosis, SinusitisThe 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 Blood Potassium Decreased, may become evident only after a product is in use by the general population.
Losec Side Effect Report#9303873
Melaena
This Melaena side effect was reported by a physician from CN. A male patient (weight:NA) experienced the following symptoms/conditions: duodenal ulcer.The patient was prescribed Losec (drug dosage: NA), which was initiated on
Jan 17, 2012. Concurrently used drugs: NA..After starting to take Losec the consumer reported adverse symptoms, such as: MelaenaThese side effects may potentially be related to Losec.
Losec Side Effect Report#9231578
Madarosis, Alopecia, Bowel Movement Irregularity, Acne, Mucosal Inflammation, Visual Acuity Reduced, Abdominal Pain Upper, Diarrhoea, Dizziness
This is a report of a 80-year-old female patient (weight: NA) from CA, suffering from the following health symptoms/conditions: ulcer, who was treated with Losec (dosage: NA, start time: NS), combined with:
  • Metformin
  • Enalapril
  • Sulcrate
  • Diovol
  • Citalopram
  • Vasotec
  • Celexa
and developed a serious reaction and side effect(s): Madarosis, Alopecia, Bowel Movement Irregularity, Acne, Mucosal Inflammation, Visual Acuity Reduced, Abdominal Pain Upper, Diarrhoea, Dizziness after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in female patients, resulting in Madarosis side effect.
Losec Side Effect Report#8998052
Dyspnoea, Hyperhidrosis, Abdominal Pain
This report suggests a potential Losec Dyspnoea side effect(s) that can have serious consequences. A 58-year-old male patient (weight: NA) from CN was diagnosed with the following symptoms/conditions: gastritis,prostatic disorder and used Losec (dosage: NA) starting 201211. After starting Losec the patient began experiencing various side effects, including: Dyspnoea, Hyperhidrosis, Abdominal PainAdditional drugs used concurrently:
  • Prostat
Although Losec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Dyspnoea, may still occur.
Losec Side Effect Report#8904800
Anxiety, Oesophageal Pain, Oropharyngeal Pain, Tremor, Abdominal Pain Upper
This Anxiety problem was reported by a health professional from CA. A 55-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Losec (dosage: NA). The following drugs were being taken at the same time: NA. When using Losec, the patient experienced the following unwanted symptoms/side effects: Anxiety, Oesophageal Pain, Oropharyngeal Pain, Tremor, Abdominal Pain UpperAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Anxiety, may become evident only after a product is in use by the general population.
Losec Side Effect Report#8902645
Osteopetrosis
This Osteopetrosis side effect was reported by a pharmacist from CA. A 82-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Losec (drug dosage: NA), which was initiated on NS. Concurrently used drugs:
  • Actonel
  • Amiodarone
  • Asaphen
  • Ativan
  • Calcium Carbonate
  • Ferrous Sulphate
  • Furosemide
  • Plavix
.After starting to take Losec the consumer reported adverse symptoms, such as: OsteopetrosisThese side effects may potentially be related to Losec.
Losec Side Effect Report#8845962
Hypocalcaemia, Hypovitaminosis
This is a report of a 63-year-old male patient (weight: NA) from GB, suffering from the following health symptoms/conditions: gastritis, who was treated with Losec (dosage: NA, start time: 1992), combined with: NA. and developed a serious reaction and side effect(s): Hypocalcaemia, Hypovitaminosis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in male patients, resulting in Hypocalcaemia side effect.
Losec Side Effect Report#8825719
Porphyria
This report suggests a potential Losec Porphyria side effect(s) that can have serious consequences. A male patient (weight: NA) from NL was diagnosed with the following symptoms/conditions: abdominal pain and used Losec (dosage: NA) starting NS. After starting Losec the patient began experiencing various side effects, including: PorphyriaAdditional drugs used concurrently:
  • Cimetidine
  • Mebeverine
The patient was hospitalized. Although Losec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Porphyria, may still occur.
Losec Side Effect Report#8817635
Nystagmus
This Nystagmus problem was reported by a pharmacist from BR. A 11-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: gastritis prophylaxis,epilepsy,systemic lupus erythematosus. On
Aug 16, 2012 this consumer started treatment with Losec (dosage: NA). The following drugs were being taken at the same time:
  • Oxcarbazepine (Daily)
  • Prednisolone
  • Nitrazepam
When using Losec, the patient experienced the following unwanted symptoms/side effects: NystagmusAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Nystagmus, may become evident only after a product is in use by the general population.
Losec Side Effect Report#8817232
Type 2 Diabetes Mellitus, Weight Decreased, Nausea
This Type 2 Diabetes Mellitus side effect was reported by a consumer or non-health professional from CA. A female patient (weight:NA) experienced the following symptoms/conditions: gastrooesophageal reflux disease.The patient was prescribed Losec (drug dosage: NA), which was initiated on 2000. Concurrently used drugs: NA..After starting to take Losec the consumer reported adverse symptoms, such as: Type 2 Diabetes Mellitus, Weight Decreased, NauseaThese side effects may potentially be related to Losec.
Losec Side Effect Report#8810111
Laryngitis, Off Label Use
This is a report of a 4-year-old male patient (weight: NA) from BR, suffering from the following health symptoms/conditions: gastritis haemorrhagic,gastrooesophageal reflux disease, who was treated with Losec (dosage: NA, start time: 2012), combined with: NA. and developed a serious reaction and side effect(s): Laryngitis, Off Label Use after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in male patients, resulting in Laryngitis side effect. The patient was hospitalized.
Losec Side Effect Report#8785177
Multiple Fractures
This report suggests a potential Losec Multiple Fractures side effect(s) that can have serious consequences. A 40-year-old male patient (weight: NA) from AU was diagnosed with the following symptoms/conditions: NA and used Losec (dosage: NA) starting NS. After starting Losec the patient began experiencing various side effects, including: Multiple FracturesAdditional drugs used concurrently: NA. Although Losec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Multiple Fractures, may still occur.
Losec Side Effect Report#8766543
Anaphylactoid Reaction
This Anaphylactoid Reaction problem was reported by a physician from CN. A female patient (weight: NA) was diagnosed with the following symptoms/conditions: alcohol poisoning. On
Aug 16, 2011 this consumer started treatment with Losec (dosage: NA). The following drugs were being taken at the same time:
  • Glucose
When using Losec, the patient experienced the following unwanted symptoms/side effects: Anaphylactoid ReactionAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Anaphylactoid Reaction, may become evident only after a product is in use by the general population.
Losec Side Effect Report#8598932
Dysphagia, Fatigue, Melaena, Abdominal Distension, Dry Mouth, Nausea, Constipation
This Dysphagia side effect was reported by a consumer or non-health professional from CN. A 40-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Losec Mups (drug dosage: NA), which was initiated on 201205. Concurrently used drugs:
  • Lamivudine
.After starting to take Losec Mups the consumer reported adverse symptoms, such as: Dysphagia, Fatigue, Melaena, Abdominal Distension, Dry Mouth, Nausea, ConstipationThese side effects may potentially be related to Losec Mups.
Losec Side Effect Report#8277215
Dizziness, White Blood Cell Count Decreased, Neutrophil Count Decreased
This is a report of a 38-year-old male patient (weight: NA) from CN, suffering from the following health symptoms/conditions: gastric ulcer, who was treated with Losec (dosage: NA, start time:
Oct 01, 2011), combined with: NA. and developed a serious reaction and side effect(s): Dizziness, White Blood Cell Count Decreased, Neutrophil Count Decreased after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Losec treatment in male patients, resulting in Dizziness side effect.


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The appearance of Losec 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 Losec Side Effects for Women?

Women Side EffectsReports
Nausea 11
Dizziness 8
Hypomagnesaemia 7
Abdominal Distension 6
Abdominal Pain 6
Diarrhoea 6
Dysphagia 6
Vomiting 6
Chest Discomfort 5
Headache 5

What are common Losec Side Effects for Men?

Men Side EffectsReports
Hypocalcaemia 7
Hypomagnesaemia 7
Asthenia 6
Dizziness 6
Dyspnoea 5
Chromaturia 4
Cough 4
Multi-organ Disorder 4
Myalgia 4
Anaemia Megaloblastic 3

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.

    Losec 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 Losec Side Effects

    Did You Have a Losec Side Effect?

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    Yes, Moderate
    Yes, Minor
    No

    How Effective is Losec for You?

    Exceeded Expectations
    Effective
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    Losec Safety Alerts, Active Ingredients, Usage Information

    NDC0186-0606
    TypeHUMAN PRESCRIPTION DRUG
    Proprietary NamePRILOSEC
    NameOmeprazole magnesium
    Dosage FormCAPSULE, DELAYED RELEASE
    RouteORAL
    On market since19951115
    LabelerAstraZeneca LP
    Active Ingredient(s)OMEPRAZOLE MAGNESIUM
    Strength(s)10
    Unit(s)mg/1
    Pharma ClassProton Pump Inhibitor [EPC],Proton Pump Inhibitors [MoA],Cytochrome P450 2C19 Inhibitors [MoA]

    More About Losec

    Side Effects reported to FDA: 156

    Losec safety alerts: 2009 2007

    Reported deaths: 8

    Reported hospitalizations: 55

    Clopidogrel (marketed as Plavix) and Omeprazole (marketed as Prilosec) - Drug Interaction

    Audience: Cardiovascular healthcare professionals, pharmacists

    [Posted 11/17/2009] FDA notified healthcare professionals of new safety information concerning an interaction between clopidogrel (Plavix), an anti-clotting medication, and omeprazole (Prilosec/Prilosec OTC), a proton pump inhibitor (PPI) used to reduce stomach acid.  New data show that when clopidogrel and omeprazole are taken together, the effectiveness of clopidogrel is reduced. Patients at risk for heart attacks or strokes who use clopidogrel to prevent blood clots will not get the full effect of this medicine if they are also taking omeprazole. Separating the dose of clopidogrel and omeprazole in time will not reduce this drug interaction.

    Other drugs that are expected to have a similar effect and should be avoided in combination with clopidogrel include: cimetidine, fluconazole, ketoconazole, voriconazole, etravirine, felbamate, fluoxetine, fluvoxamine, and ticlopidine. 

    Recommendations for healthcare professionals are provided in the "Information for Healthcare Professionals" sheet.

    [11/17/2009 - Information for Healthcare Professionals - FDA]
    [11/17/2009 - Public Health Advisory - FDA]
    [11/17/2009 - Follow-Up to January 2009 Early Communication - FDA]

    Previous MedWatch Alert:

    [01/26/2009] Clopidogrel bisulfate (marketed as Plavix) Early Communication 

    Latest Losec clinical trials