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Fervex Side Effects

Common Fervex Side Effects


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

Pyrexia (3)
Asthenia (3)
Overdose (3)
Renal Failure Acute (3)
Metabolic Acidosis (3)
Hyperkalaemia (3)
Abdominal Pain Upper (1)
Vomiting (1)
Agranulocytosis (1)
Haematemesis (1)
Myalgia (1)
Diarrhoea (1)


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.

Fervex Side Effects Reported to FDA

The following Fervex 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 Fervex 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.
Abdominal Pain Upper, Agranulocytosis, Diarrhoea, Haematemesis, Vomiting
This is a report of a 26-year-old male patient (weight: NA) from FRANCE, suffering from the following symptoms/conditions: tonsillitis,oropharyngeal pain,influenza, who was treated with Fervex (dosage: NA, start time: Dec 27, 2008), combined with: NA. and developed a serious reaction and side effect(s). The consumer presented with:
  • Abdominal Pain Upper
  • Agranulocytosis
  • Diarrhoea
  • Haematemesis
  • Vomiting
which developed after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Fervex treatment in male patients, resulting in abdominal pain upper side effect. The patient was hospitalized.

Asthenia, Hyperkalaemia, Metabolic Acidosis, Overdose, Pyrexia, Renal Failure Acute
This report suggests a potential Fervex Asthenia, Hyperkalaemia, Metabolic Acidosis, Overdose, Pyrexia, Renal Failure Acute side effect(s) that can have serious consequences. A 59-year-old male patient (weight: NA) from FRANCE was diagnosed with the following symptoms/conditions: myalgia,pyrexia,asthenia,pneumonia and used Fervex (dosage: NA) starting May 18, 2008. Soon after starting Fervex the patient began experiencing various side effects, including:
  • Asthenia
  • Hyperkalaemia
  • Metabolic Acidosis
  • Overdose
  • Pyrexia
  • Renal Failure Acute
Drugs used concurrently: NA.The patient was hospitalized. Although Fervex demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as asthenia, may still occur.

Asthenia, Hyperkalaemia, Metabolic Acidosis, Myalgia, Overdose, Pyrexia, Renal Failure Acute
This Asthenia, Hyperkalaemia, Metabolic Acidosis, Myalgia, Overdose, Pyrexia, Renal Failure Acute problem was reported by a physician from FRANCE. A 59-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: myalgia,pyrexia,asthenia,pneumonia. On May 18, 2008 this consumer started treatment with Fervex (dosage: NA). The following drugs were being taken at the same time: NA. When commencing Fervex, the patient experienced the following unwanted symptoms/side effects:
  • Asthenia
  • Hyperkalaemia
  • Metabolic Acidosis
  • Myalgia
  • Overdose
  • Pyrexia
  • Renal Failure Acute
The 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 asthenia, may become evident only after a product is in use by the general population.

Asthenia, Hyperkalaemia, Metabolic Acidosis, Overdose, Pyrexia, Renal Failure Acute
This is a report of a 59-year-old male patient (weight: NA) from FRANCE. The patient developed the following symptoms/conditions: myalgia,pyrexia,asthenia and was treated with Fervex (dosage: NA) starting May 18, 2008. Concurrently used drugs: NA.Soon after that, the consumer experienced the following side effects:
  • Asthenia
  • Hyperkalaemia
  • Metabolic Acidosis
  • Overdose
  • Pyrexia
  • Renal Failure Acute
The patient was hospitalized. This opens a possibility that Fervex treatment could cause the above reactions, including asthenia, and some male subjects may be more susceptible.



Top 10 Fervex Side Effects for Women

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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.


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    Fervex Safety Alerts, Active Ingredients, Usage Information

    More About Fervex

    Side Effects reported to FDA: 4

    Fervex safety alerts: No

    Reported hospitalizations: 4

    Latest Fervex clinical trials