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Cozaar Side Effects

Common Cozaar Side Effects


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

Renal Failure Acute (100)
Dizziness (94)
Blood Pressure Increased (92)
Dyspnoea (80)
Rhabdomyolysis (72)
Renal Failure (67)
Hypotension (67)
Hyperkalaemia (63)
Malaise (56)
Asthenia (56)
Fall (55)
Fatigue (54)
Headache (53)
Hypertension (52)
Nausea (52)
Myocardial Infarction (51)
Diarrhoea (51)
Cough (51)
Cardiac Failure (48)
Cerebrovascular Accident (47)

➢ 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.

Cozaar Side Effects Reported to FDA

The following Cozaar 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 Cozaar 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.
Prostatic Operation, Gallbladder Operation
This is a report of a male patient (weight: NA) from BR, suffering from the following symptoms/conditions: hypertension,glaucoma,hypothyroidism,blood cholesterol,type 2 diabetes mellitus, who was treated with Cozaar (dosage: 50 Mg, Qd, start time: 2004), combined with:
  • Cosopt (2 Df, Qd)
  • Puran T4 (100 Microgram, Qd)
  • Atorvastatin Calcium (20 Mg, Qd)
  • Metformin (500 Mg, Bid)
  • Xalatan (Unk)
and developed a serious reaction and side effect(s). The consumer presented with:
  • Prostatic Operation
  • Gallbladder Operation
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cozaar treatment in male patients, resulting in prostatic operation side effect.


This report suggests a potential Cozaar side effect(s) that can have serious consequences. A 64-year-old female patient (weight: NA) from PH was diagnosed with the following symptoms/conditions: NA and used Cozaar (dosage: 100 Mg, Qd) starting May 24, 2013. Soon after starting Cozaar the patient began experiencing various side effects, including:
    Drugs used concurrently: NA. Although Cozaar demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as death, may still occur.

    Blood Pressure Increased, Dizziness, Thinking Abnormal, Sleep Disorder, Muscle Spasms, Fatigue
    This Blood Pressure Increased, Dizziness, Thinking Abnormal, Sleep Disorder, Muscle Spasms, Fatigue problem was reported by a consumer or non-health professional from US. A 65-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: hypertension. On 1997 this consumer started treatment with Cozaar (dosage: 50 Mg, Bid). The following drugs were being taken at the same time: NA. When commencing Cozaar, the patient experienced the following unwanted symptoms/side effects:
    • Blood Pressure Increased
    • Dizziness
    • Thinking Abnormal
    • Sleep Disorder
    • Muscle Spasms
    • Fatigue
    Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as blood pressure increased, may become evident only after a product is in use by the general population.

    Malaise, Pain, Pain In Extremity, Arthralgia, Musculoskeletal Pain, Back Pain, Impaired Work Ability, Gait Disturbance
    This is a report of a 48-year-old female patient (weight: NA) from US. The patient developed the following symptoms/conditions: blood pressure inadequately controlled,thyroid disorder and was treated with Cozaar (dosage: Date Of Use Given 09/30/2015 Is Greater Than Current Date?1 Pill Once Daily) starting NS. Concurrently used drugs:
    • Levotiroxine (Date Of Use Given 08/30/2015 Is Greater Than Current Date?1 Pill Twice Daily)
    Soon after that, the consumer experienced the following side effects:
    • Malaise
    • Pain
    • Pain In Extremity
    • Arthralgia
    • Musculoskeletal Pain
    • Back Pain
    • Impaired Work Ability
    • Gait Disturbance
    This opens a possibility that Cozaar treatment could cause the above reactions, including malaise, and some female subjects may be more susceptible.


    Hepatic Cancer
    A 72-year-old female patient (weight: NA) from PH with the following symptoms/conditions: NA started Cozaar treatment (dosage: 1 Df, Qd) on Aug 06, 2012. Soon after starting Cozaar treatment, the subject experienced various side effects, including:
    • Hepatic Cancer
    Concurrently used drugs:
    • Janumet (Unk, Qd)
    • Vitamin B Complex
    • Ascorbic Acid
    • Godex Cap
    This finding indicates that some female patients could be more vulnerable to Cozaar.

    Incorrect Product Storage, No Adverse Event
    A 80-year-old male patient from US (weight: NA) experienced symptoms, such as: hypertension and was treated with Cozaar(dosage: 50 Mg, Once Daily). The treatment was initiated on NS. After that a consumer reported the following side effect(s):
    • Incorrect Product Storage
    • No Adverse Event
    Concurrently used drugs, which potentially could have contributed to side effect(s) or affected Cozaar efficacy: NA.

    Abdominal Pain Upper
    In this report, Cozaar was administered for the following condition: NA.A 35-year-old male consumer from US (weight: NA) started Cozaar treatment (dosage: Daily Dose-100mg/day) on Feb 12, 1997.Sometime after starting the treatment, the patient complained of the following side effect(s):
    • Abdominal Pain Upper
    A possible interaction with other drugs could have contributed to this reaction:
    • Insulin (344)
    Establishing a causal relationship between a specific drug and consumer's side effects is complex, but it is possible that in this report Cozaar treatment could be related to the listed above side effect(s).

    Myocardial Infarction
    This is a report of the following Cozaar side effect(s):
    • Myocardial Infarction
    A 75-year-old male patient from PH (weight: NA) presented with the following condition: NA and received a treatment with Cozaar (dosage: 50 Mg, Qd) starting: 2011.The following concurrently used drugs could have generated interactions: NA.This report suggests that a Cozaar treatment could be associated with the listed above side effect(s).

    Bronchial Disorder, Upper Respiratory Tract Infection, Dyspnoea, Palpitations, Anxiety, Weight Increased, Anosmia, Ageusia
    This Cozaar report was submitted by a 63-year-old female consumer from US (weight: NA). The patient was diagnosed with: blood cholesterol increased and Cozaar was administered (dosage: 25 Mg, Unk) starting: 201309. The consumer developed a set of symptoms:
    • Bronchial Disorder
    • Upper Respiratory Tract Infection
    • Dyspnoea
    • Palpitations
    • Anxiety
    • Weight Increased
    • Anosmia
    • Ageusia
    Other drugs used simultaneously: NA.Those unexpected symptoms could be linked to a Cozaar treatment, however establishing a potential drug-safety problem requires a more detailed clinical analysis.

    Plasma Cell Myeloma
    This is a report of a possible correlation between Cozaar use and the following symptoms/side effect(s):
    • Plasma Cell Myeloma
    which could contribute to an assessment of Cozaar risk profile.A female consumer from US (weight: NA) was suffering from investigation,diabetes mellitus,depression,pain,anxiety,nausea and was treated with Cozaar (dosage: Unk) starting Apr 02, 2001.Other concurrent medications:
    • Insulin (Total Daily Dose Variable)
    • Duloxetine Hydrochloride (Unk)
    • Oxycodone (Unk)
    • Lorazepam (Unk)
    • Compazine (10mg Q 6 Prn)
    • Benadryl (Unk)
    • Acyclovir (Unk)


    Cardiac Arrest
    A 50-year-old male patient from US (weight: NA) presented with the following symptoms: NA and after a treatment with Cozaar (dosage: Unk) experienced the following side effect(s):
    • Cardiac Arrest
    The treatment was started on Dec 26, 1996. Cozaar was used in combination with the following drugs:
    • 70/30 Insulin (60 U)
    • Norvasc (Unk)
    • Hytrin (Unk)
    • Kcl (Unk)
    • Zantac (Unk)
    • Trazodone Hydrochloride (Unk)
    • Quinine (Unk)
    • Zinc Sulfate (Unk)
    This report could alert potential Cozaar consumers.

    Urticaria
    In this report, a 39-year-old female patient from US (weight: NA) was affected by a possible Cozaar side effect.The patient was diagnosed with NA. After a treatment with Cozaar (dosage: 50 Mg, Qd, start date: Jan 28, 2000), the patient experienced the following side effect(s):
    • Urticaria
    The following simultaneously used drugs could have led to this reaction: NA.The findings here stress that side effects should be taken into consideration when evaluating a Cozaar treatment.

    Cerebrovascular Accident
    This is a report of a 56-year-old male patient from PH (weight: NA), who used Cozaar (dosage: One Tablet, Once A Day) for a treatment of NA. After starting a treatment on Nov 22, 2012, the patient experienced the following side effect(s):
    • Cerebrovascular Accident
    The following drugs could possibly have interacted with the Cozaar treatment
    • Amlodipine (Unk)
    The patient was hospitalized.Taken together, these observations suggest that a Cozaar treatment could be related to side effect(s), such as Cerebrovascular Accident.

    Pulmonary Oedema, Increased Upper Airway Secretion, Cough
    This pulmonary oedema side effect was reported by a health professional from PH. A 80-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Cozaar (dosage: One Tablet, Once A Day), which was started on Oct 29, 2012. Concurrently used drugs: NA. When starting to take Cozaar the consumer reported the following symptoms:
    • Pulmonary Oedema
    • Increased Upper Airway Secretion
    • Cough
    The patient was hospitalized. These side effects may potentially be related to Cozaar.

    Infection, Blood Pressure Inadequately Controlled, Blood Pressure Fluctuation, Prescribed Overdose, Nervousness, Blood Pressure Increased, Dizziness
    This is a Cozaar side effect report of a 81-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: hypertension, who was treated with Cozaar (dosage:100 Mg, Qd, start time: 2004), combined with: NA., and developed a serious reaction and a infection side effect. The patient presented with:
    • Infection
    • Blood Pressure Inadequately Controlled
    • Blood Pressure Fluctuation
    • Prescribed Overdose
    • Nervousness
    • Blood Pressure Increased
    • Dizziness
    which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Cozaar treatment in female patients suffering from hypertension, resulting in infection.

    Upper Limb Fracture, Fall, Renal Mass, Joint Swelling
    This report suggests a potential Cozaar upper limb fracture side effect(s) that can have serious consequences. A 66-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): hypertension and used Cozaar (dosage: 100 Mg, Qd) starting 2011. Soon after starting Cozaar the patient began experiencing various side effects, including:
    • Upper Limb Fracture
    • Fall
    • Renal Mass
    • Joint Swelling
    Drugs used concurrently:
    • Losartan Potassium Tablets (100 Mg, Qd)
    Although Cozaar demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as upper limb fracture, may still occur.

    Abdominal Pain
    This abdominal pain problem was reported by a physician from US. A 44-year-old male patient (weight: NA) was diagnosed with the following medical condition(s): hypertension.On Dec 23, 2013 a consumer started treatment with Cozaar (dosage: 100 Mg, Once A Day). The following drugs/medications were being taken at the same time: NA. When commencing Cozaar, the patient experienced the following unwanted symptoms /side effects:
    • Abdominal Pain
    Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as abdominal pain, may become evident only after a product is in use by the general population.

    Blood Pressure Increased, Frustration
    This is a Cozaar side effect report of a 68-year-old female patient (weight: NA) from US. The patient developed the following symptoms/conditions: hypertension and was treated with Cozaar (dosage: 100 Mg, Qd) starting 201311. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
    • Blood Pressure Increased
    • Frustration
    This opens a possibility that Cozaar could cause blood pressure increased and that some female patients may be more susceptible.

    Cardiac Arrest, Fall, Tachycardia
    A 80-year-old female patient (weight: NA) from FR with the following symptoms: hypertension started Cozaar 50 Mg, Comprim? Pellicul? treatment (dosage: 1 Df, Qd) on 1994. Soon after starting Cozaar 50 Mg, Comprim? Pellicul? treatment, the consumer experienced several side effects, including:
    • Cardiac Arrest
    • Fall
    • Tachycardia
    . Concurrently used drugs:
    • Detrol
    • Doliprane
    • Orocal
    This finding indicates that some patients can be more vulnerable to developing Cozaar 50 Mg, Comprim? Pellicul? side effects, such as cardiac arrest.

    Blood Pressure Decreased
    This blood pressure decreased side effect was reported by a physician from US. A 82-year-old male patient (weight:NA) experienced the following symptoms/conditions: blood pressure increased.The patient was prescribed Cozaar (dosage: NA), which was started on NS. Concurrently used drugs:
    • Metoprolol Tartrate
    .When starting to take Cozaar the consumer reported symptoms, such as:
    • Blood Pressure Decreased
    These side effects may potentially be related to Cozaar.

    Pain
    This is a report of a 56-year-old female patient (weight: NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Cozaar (dosage: Unk, start time: 2002), combined with:
    • Estradiol
    • Aciphex
    • Lyrica (25 Mg, 3 Times Daily)
    • Aspirin
    • Centrum Silver
    and developed a serious reaction and side effect(s). The consumer presented with:
    • Pain
    which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Cozaar treatment in female patients, resulting in pain side effect.

    Accidental Overdose
    This report suggests a potential Cozaar Accidental Overdose side effect(s) that can have serious consequences. A 69-year-old female patient (weight: NA) from US was diagnosed with the following symptoms/conditions: NA and used Cozaar (dosage: 200 Mg, Once) starting Dec 20, 2013. Soon after starting Cozaar the patient began experiencing various side effects, including:
    • Accidental Overdose
    Drugs used concurrently: NA. Although Cozaar demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as accidental overdose, may still occur.

    Cerebrovascular Accident
    This Cerebrovascular Accident problem was reported by a consumer or non-health professional from PH. A 65-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On Dec 22, 2012 this consumer started treatment with Cozaar (dosage: 1 Tablet, Qd). The following drugs were being taken at the same time: NA. When commencing Cozaar, the patient experienced the following unwanted symptoms/side effects:
    • Cerebrovascular Accident
    Although all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as cerebrovascular accident, may become evident only after a product is in use by the general population.

    Cerebrovascular Accident
    This is a report of a 62-year-old female patient (weight: NA) from PH. The patient developed the following symptoms/conditions: NA and was treated with Cozaar (dosage: 1 Df, Qd) starting Oct 31, 2013. Concurrently used drugs: NA.Soon after that, the consumer experienced the following side effects:
    • Cerebrovascular Accident
    This opens a possibility that Cozaar treatment could cause the above reactions, including cerebrovascular accident, and some female subjects may be more susceptible.

    Myocardial Infarction
    A 77-year-old female patient (weight: NA) from PH with the following symptoms/conditions: NA started Cozaar treatment (dosage: 1 Df, Qd) on Nov 22, 2012. Soon after starting Cozaar treatment, the subject experienced various side effects, including:
    • Myocardial Infarction
    Concurrently used drugs: NA. This finding indicates that some female patients could be more vulnerable to Cozaar.

    1 of 88 



    Top 10 Cozaar Side Effects for Women

    Women Side EffectsReports
    Blood Pressure Increased 63
    Dizziness 62
    Dyspnoea 48
    Renal Failure Acute 44
    Headache 41
    Fatigue 40
    Diarrhoea 37
    Fall 36
    Cough 35
    Malaise 35

    Keep Track of Side Effects

    Note Your Observations

    It is really important to keep of your 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

    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.


    Discuss Cozaar Side Effects

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    How Effective is Cozaar for You?

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    Cozaar Safety Alerts, Active Ingredients, Usage Information

    NDC0006-0951
    TypeHUMAN PRESCRIPTION DRUG
    Proprietary NameCOZAAR
    Namelosartan potassium
    Dosage FormTABLET, FILM COATED
    RouteORAL
    On market since19950414
    LabelerMerck Sharp & Dohme Corp.
    Active Ingredient(s)LOSARTAN POTASSIUM
    Strength(s)25
    Unit(s)mg/1
    Pharma ClassAngiotensin 2 Receptor Antagonists [MoA],Angiotensin 2 Receptor Blocker [EPC]

    Cozaar Dosage, Warnings, Usage.

    Side Effects reported to FDA: 2194

    Cozaar safety alerts: No

    Reported deaths: 245

    Reported hospitalizations: 1323

    Latest Cozaar clinical trials