This is an index of side effect / adverse reaction reports (a.k.a. adverse event reports) related to Lopressor (Metoprolol) and submitted to the FDA during the sample period of about a year. The information is not vetted and should not be considered as verified clinical evidence.
Reports by Event Outcome
All Cases (106)
Death (5)
Life Threatening Events (12)
Disability (6)
Reports by Reaction Type
Headache (15),
Drug Ineffective (13),
Blood Pressure Increased (12),
Wrong Technique in Drug Usage Process (10),
Overdose (10),
Feeling Abnormal (10),
Syncope (9),
Dyspnoea (8),
Hypertensive Crisis (8),
Bradycardia (8),
Angina Pectoris (7),
Hypotension (7)
Below are a few examples of reports where side effects / adverse reactions may be related to Lopressor (Metoprolol). For a complete list or a specific selection of reports, please use the links above.
Possible Lopressor side effects in male
Reported by a consumer/non-health professional from United States on 2012-08-24
Patient: male
Reactions: Drug Ineffective, Rectal Haemorrhage, Headache
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Lopressor
Dosage: unk ukn, unk
Indication: Hypertension
Metoprolol Tartrate
Dosage: unk ukn, unk
Norvasc
Dosage: unk ukn, unk
Possible Lopressor side effects in male
Reported by a physician from United States on 2012-08-24
Patient: male
Reactions: Drug Ineffective, Rectal Haemorrhage, Headache
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Lopressor
Dosage: unk ukn, unk
Indication: Hypertension
Metoprolol Tartrate
Dosage: unk ukn, unk
Norvasc
Dosage: unk ukn, unk
Possible Lopressor side effects in 30 year old female
Reported by a health professional (non-physician/pharmacist) from Japan on 2012-08-23
Patient: 30 year old female, weighing 58.0 kg (127.6 pounds)
Reactions: Drug Intolerance, Maternal Exposure During Pregnancy, Breech Presentation, Uterine Hypotonus
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Isosorbide Dinitrate; Dipyridamole; Nifedipine
Possible Lopressor side effects in 30 year old female
Reported by a health professional (non-physician/pharmacist) from Japan on 2012-08-23
Patient: 30 year old female, weighing 58.0 kg (127.6 pounds)
Reactions: Drug Intolerance, Maternal Exposure During Pregnancy, Uterine Hypotonus, Breech Presentation
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Dipyridamole; Isosorbide Dinitrate; Nifedipine
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-08-21
Patient: female
Reactions: Nephrolithiasis
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Potassium Citrate
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-08-16
Patient: female
Reactions: Wrong Technique in Drug Usage Process, Dizziness, Headache, Oesophageal Carcinoma
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg, unk
Lopressor
Dosage: 0.5 df (50 mg), bid
Metoprolol Tartrate
Dosage: 0.5 tablet (50 mg), bid
Other drugs received by patient: Vitamin D; Prevacid; Lorazepam; Vitamin B-12
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-08-16
Patient: female
Reactions: Wrong Technique in Drug Usage Process, Dizziness, Oesophageal Carcinoma, Headache
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg, unk
Lopressor
Dosage: 0.5 df (50 mg), bid
Metoprolol Tartrate
Dosage: 0.5 tablet (50 mg), bid
Other drugs received by patient: Lorazepam; Vitamin D; Vitamin B-12; Prevacid
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-08-16
Patient: female
Reactions: Dissecting Coronary Artery Aneurysm, Blood Pressure Increased
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Norvasc; Metoprolol Tartrate; Cozaar
Possible Lopressor side effects in 65 year old female
Reported by a health professional (non-physician/pharmacist) from France on 2012-08-14
Patient: 65 year old female
Reactions: Pancreatitis Acute, Hypercholesterolaemia
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Acetaminophen
Dosage: unk
Acupan
Dosage: unk
Atarax
Dosage: 1 df, single, 1 unit, at night
Administration route: Oral
Start date: 2012-06-26
End date: 2012-06-26
Dacarbazine
Dosage: one course a month
Indication: Metastatic Malignant Melanoma
Start date: 2012-05-22
End date: 2012-05-22
Lopressor
Dosage: unk
Lyrica
Dosage: unk
Pantoprazole Sodium
Dosage: unk
Plavix
Dosage: unk
Possible Lopressor side effects in 50 year old female
Reported by a consumer/non-health professional from United States on 2012-08-09
Patient: 50 year old female, weighing 124.0 kg (272.8 pounds)
Reactions: Coronary Artery Occlusion, Myocardial Infarction
Drug(s) suspected as cause:
Chantix
Dosage: unk
Administration route: Oral
Indication: Smoking Cessation Therapy
Start date: 2008-01-01
End date: 2009-01-01
Lopressor
Dosage: unk
Administration route: Oral
Indication: Blood Pressure Abnormal
Lopressor
Dosage: splitting the 50mg tablets into half so as to take 25mg in the morning and 25mg at night
Administration route: Oral
Other drugs received by patient: Zocor; Antivert; Antivert
Possible Lopressor side effects in male
Reported by a physician from United States on 2012-08-09
Patient: male
Reactions: Angina Pectoris, Bradycardia, non-Cardiac Chest Pain
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Lantus; Beta Blocking Agents; Aspirin; Saxagliptin; Apidra; Metformin Hydrochloride; Angiotensin Converting Enzyme Blockers
Possible Lopressor side effects in 31 year old female
Reported by a pharmacist from Japan on 2012-08-09
Patient: 31 year old female
Reactions: Pupillary Reflex Impaired, Overdose, Suicide Attempt, Cardiac Arrest, Blood Pressure Decreased, Loss of Consciousness
Adverse event resulted in: life threatening event, hospitalization
Drug(s) suspected as cause:
Levotomin
Dosage: 300 mg, daily
Administration route: Oral
Start date: 2009-03-09
Lopressor
Dosage: 5040 mg, daily
Administration route: Oral
Indication: Suicide Attempt
Start date: 2009-03-09
Possible Lopressor side effects in female
Reported by a pharmacist from Japan on 2012-08-05
Patient: female
Reactions: Overdose, Suicide Attempt
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Lopressor
Possible Lopressor side effects in male
Reported by a consumer/non-health professional from United States on 2012-08-03
Patient: male
Reactions: Myocardial Infarction
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Aspirin; Cumiden
Possible Lopressor side effects in female
Reported by a physician from United States on 2012-08-02
Patient: female
Reactions: Ventricular Extrasystoles, Palpitations, Ventricular Tachycardia, Feeling Abnormal
Adverse event resulted in: life threatening event
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg, q12h
Metoprolol Tartrate
Dosage: 50 mg, unk
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-08-02
Patient: female
Reactions: Nephrolithiasis
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Potassium Citrate
Possible Lopressor side effects in female
Reported by a physician from United States on 2012-08-02
Patient: female
Reactions: Ventricular Extrasystoles, Palpitations, Ventricular Tachycardia, Feeling Abnormal
Adverse event resulted in: life threatening event
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg, q12h
Metoprolol Tartrate
Dosage: 50 mg, unk
Possible Lopressor side effects in male
Reported by a consumer/non-health professional from United States on 2012-08-01
Patient: male
Reactions: Rectal Haemorrhage
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Lopressor
Indication: Hypertension
Norvasc
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-07-31
Patient: female
Reactions: Dysstasia, Wrong Technique in Drug Usage Process, Dizziness, Headache, Feeling Abnormal, Crying, Feeling Cold
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg, tid
Lopressor
Dosage: 0.5 df(100 mg), unk
Possible Lopressor side effects in 65 year old female
Reported by a health professional (non-physician/pharmacist) from France on 2012-07-31
Patient: 65 year old female
Reactions: Pancreatitis Acute
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Acetaminophen
Dosage: unk
Acupan
Dosage: unk
Atarax
Dosage: 1 df, single
Start date: 2012-06-26
End date: 2012-06-26
Dacarbazine
Dosage: unk
Indication: Metastatic Malignant Melanoma
Start date: 2012-05-22
End date: 2012-05-22
Lopressor
Dosage: unk
Lyrica
Dosage: unk
Pantoprazole Sodium
Dosage: unk
Plavix
Dosage: unk
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-07-26
Patient: female
Reactions: Movement Disorder, Weight Decreased, Headache, Cardiac Disorder, Abnormal Dreams, Abdominal Discomfort, Apparent Death, Sensation of Foreign Body, Malaise, Palpitations, DRY Mouth, Nervousness, Aphagia, Supraventricular Tachycardia, Drug Intolerance, Ataxia, Abnormal Behaviour, Apathy, Insomnia, Drug Ineffective, Periarthritis, Somnolence, Sneezing, Depression, Lethargy, Nightmare, Nausea, Condition Aggravated, Anxiety, Panic Attack, Heart Rate Increased, Alopecia, Hypervigilance, Feeling Abnormal
Adverse event resulted in: life threatening event, hospitalization
Drug(s) suspected as cause:
Antidepressants
Start date: 2009-12-09
Benzodiazepines
Klonopin
Dosage: 0.25 mg, unk
Start date: 2009-12-09
Lopressor
Dosage: 25 mg, q6h
Lopressor
Dosage: 25 mg, unk
Lopressor
Dosage: 50 mg, unk
Lopressor
Dosage: 50 mg, q12h
Indication: Panic Attack
Metoprolol Succinate
Toprol-XL
Valium
Dosage: 1 tablet of 0.25 mg, three times daily
Valium
Dosage: 1/2 tablet of 0.25 mg, three times daily
Valium
Dosage: 1/2 tablet, four times daily
Zenex
Other drugs received by patient: Activella; Xanax; Femhrt
Possible Lopressor side effects in female
Reported by a physician from United States on 2012-07-26
Patient: female
Reactions: Movement Disorder, Weight Decreased, Headache, Cardiac Disorder, Apparent Death, Abnormal Dreams, Abdominal Discomfort, Sensation of Foreign Body, Malaise, Palpitations, DRY Mouth, Nervousness, Aphagia, Supraventricular Tachycardia, Drug Intolerance, Ataxia, Abnormal Behaviour, Apathy, Insomnia, Drug Ineffective, Somnolence, Periarthritis, Sneezing, Depression, Lethargy, Nightmare, Nausea, Condition Aggravated, Anxiety, Panic Attack, Alopecia, Heart Rate Increased, Hypervigilance, Feeling Abnormal
Adverse event resulted in: life threatening event, hospitalization
Drug(s) suspected as cause:
Antidepressants
Start date: 2009-12-09
Benzodiazepines
Klonopin
Dosage: 0.25 mg, unk
Start date: 2009-12-09
Lopressor
Dosage: 25 mg, unk
Lopressor
Dosage: 50 mg, unk
Lopressor
Dosage: 50 mg, q12h
Indication: Panic Attack
Lopressor
Dosage: 25 mg, q6h
Metoprolol Succinate
Toprol-XL
Valium
Dosage: 1/2 tablet, four times daily
Valium
Dosage: 1/2 tablet of 0.25 mg, three times daily
Valium
Dosage: 1 tablet of 0.25 mg, three times daily
Zenex
Other drugs received by patient: Activella; Xanax; Femhrt
Possible Lopressor side effects in female
Reported by a health professional (non-physician/pharmacist) from Canada on 2012-07-20
Patient: female
Reactions: Fatigue, Syncope
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg
Metoprolol Succinate
Possible Lopressor side effects in male
Reported by a physician from United States on 2012-07-20
Patient: male
Reactions: Myocardial Infarction
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Aspirin; Cumiden
Possible Lopressor side effects in female
Reported by a health professional (non-physician/pharmacist) from Canada on 2012-07-20
Patient: female
Reactions: Syncope, Fatigue
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg
Metoprolol Succinate
Possible Lopressor side effects in 65 year old female
Reported by a health professional (non-physician/pharmacist) from France on 2012-07-17
Patient: 65 year old female
Reactions: Pancreatitis Acute
Adverse event resulted in: hospitalization
Drug(s) suspected as cause:
Acetaminophen
Dosage: unk
Acupan
Dosage: unk
Atarax
Dosage: 1 df, single
Start date: 2012-06-26
End date: 2012-06-26
Dacarbazine
Dosage: unk
Indication: Metastatic Malignant Melanoma
Start date: 2012-05-22
End date: 2012-05-22
Lopressor
Dosage: unk
Lyrica
Dosage: unk
Pantoprazole Sodium
Dosage: unk
Plavix
Dosage: unk
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-07-16
Patient: female
Reactions: Blood Pressure Increased, Dissecting Coronary Artery Aneurysm
Drug(s) suspected as cause:
Lopressor
Other drugs received by patient: Cozaar; Metoprolol Tartrate; Norvasc
Possible Lopressor side effects in female
Reported by a physician from United States on 2012-07-11
Patient: female
Reactions: Hypertension
Drug(s) suspected as cause:
Lopressor
Dosage: unk ukn, unk
Metoprolol Tartrate
Dosage: unk ukn, unk
Other drugs received by patient: Methyldopa; Lisinopril; Nexium; Lipitor
Possible Lopressor side effects in female
Reported by a consumer/non-health professional from United States on 2012-07-10
Patient: female
Reactions: Product Substitution Issue, Hypertension
Drug(s) suspected as cause:
Lopressor
Dosage: unk ukn, unk
Metoprolol Tartrate
Dosage: unk ukn, unk
Other drugs received by patient: Lisinopril; Nexium; Lipitor; Methyldopa
Possible Lopressor side effects in female
Reported by a physician from United States on 2012-06-22
Patient: female
Reactions: Asthma, Wrong Technique in Drug Usage Process, Hypersensitivity
Drug(s) suspected as cause:
Lopressor
Dosage: 50 mg (half tablet of 100 mg), bid
Administration route: Oral
Indication: Blood Pressure Abnormal
Metoprolol
Dosage: 50 mg
Administration route: Oral
Singulair
Dosage: 10 mg, qd
Administration route: Oral
Indication: Hypersensitivity
End date: 2012-06-09
Other drugs received by patient: Allegra; Vitamin B Complex CAP
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