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Telfast Side Effects

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Common Telfast Side Effects


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

Dizziness (9)
Tachycardia (8)
Tremor (6)
Spleen Disorder (5)
Bradycardia (5)
Nausea (5)
Unevaluable Event (5)
Toxic Skin Eruption (4)
Liver Disorder (4)
Hallucination (4)
Syncope (4)
Dry Mouth (4)
Balance Disorder (4)
Chondrolysis (4)
Rash (3)
Asthenia (3)
Off Label Use (3)
Lymphadenopathy (3)
Convulsion (3)
Nervousness (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.

Telfast Side Effects Reported to FDA



Telfast Side Effect Report#9852580
Suicidal Ideation
This is a report of a 99-year-old male patient (weight: NA) from AU, suffering from the following health symptoms/conditions: NA, who was treated with Telfast (dosage: NA, start time: NS), combined with:
  • Efexor
and developed a serious reaction and side effect(s): Suicidal Ideation after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in male patients, resulting in Suicidal Ideation side effect.
Telfast Side Effect Report#9805637
Dry Mouth, Dyspnoea
This report suggests a potential Telfast Dry Mouth side effect(s) that can have serious consequences. A 50-year-old male patient (weight: NA) from IL was diagnosed with the following symptoms/conditions: hypersensitivity and used Telfast (dosage: NA) starting NS. After starting Telfast the patient began experiencing various side effects, including: Dry Mouth, DyspnoeaAdditional drugs used concurrently: NA.The patient was hospitalized. Although Telfast demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Dry Mouth, may still occur.
Telfast Side Effect Report#9720867
Bronchospasm, Wheezing, Cough, Chest Discomfort
This Bronchospasm problem was reported by a consumer or non-health professional from GB. A 24-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: seasonal allergy. On NS this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time: NA. When using Telfast, the patient experienced the following unwanted symptoms/side effects: Bronchospasm, Wheezing, Cough, Chest DiscomfortAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Bronchospasm, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#9525709
Guillain-barre Syndrome, Coordination Abnormal, Gait Disturbance, Muscle Contractions Involuntary, Tremor, Dystonia, Extrapyramidal Disorder, Parkinson^s Disease, Neuropathy Peripheral
This Guillain-barre Syndrome side effect was reported by a health professional from AU. A 55-year-old male patient (weight:NA) experienced the following symptoms/conditions: sinus disorder,hypertension.The patient was prescribed Telfast (drug dosage: NA), which was initiated on
Aug 01, 2000. Concurrently used drugs:
  • Micardis
  • Dapa-tabs
.After starting to take Telfast the consumer reported adverse symptoms, such as: Guillain-barre Syndrome, Coordination Abnormal, Gait Disturbance, Muscle Contractions Involuntary, Tremor, Dystonia, Extrapyramidal Disorder, Parkinson^s Disease, Neuropathy PeripheralThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#9516022
Anxiety, Extrapyramidal Disorder, Serotonin Syndrome, Akathisia, Dyskinesia, Dystonia, Extrapyramidal Disorder, Hostility, Tremor
This is a report of a 30-year-old male patient (weight: NA) from NL, suffering from the following health symptoms/conditions: alpha-1 anti-trypsin deficiency,attention deficit/hyperactivity disorder, who was treated with Telfast (dosage: NA, start time: 200811), combined with:
  • Efexor Xr (Strength: 37.5 Mg)
and developed a serious reaction and side effect(s): Anxiety, Extrapyramidal Disorder, Serotonin Syndrome, Akathisia, Dyskinesia, Dystonia, Extrapyramidal Disorder, Hostility, Tremor after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in male patients, resulting in Anxiety side effect.
Telfast Side Effect Report#9467868
Activities Of Daily Living Impaired, Asthma, Dyspnoea, Chest Discomfort, Therapeutic Response Decreased, Appetite Disorder, Rash, Pruritus, Insomnia
This report suggests a potential Telfast Activities Of Daily Living Impaired side effect(s) that can have serious consequences. A 35-year-old male patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: seasonal allergy,gastrooesophageal reflux disease,asthma and used Telfast (dosage: NA) starting
Jul 01, 2013. After starting Telfast the patient began experiencing various side effects, including: Activities Of Daily Living Impaired, Asthma, Dyspnoea, Chest Discomfort, Therapeutic Response Decreased, Appetite Disorder, Rash, Pruritus, InsomniaAdditional drugs used concurrently:
  • Omeprazole
  • Symbicort (Dose: 400 Mcg 1 Puff Twice A Day)
The patient was hospitalized and became disabled. Although Telfast demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Activities Of Daily Living Impaired, may still occur.
Telfast Side Effect Report#9339469
Acute Pulmonary Oedema, Myocardial Infarction
This Acute Pulmonary Oedema problem was reported by a pharmacist from FR. A 37-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Jul 17, 2012 this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time:
  • Tercian (Dose:1 Unit(s))
  • Tercian (Dose:2 Unit(s))
  • Tercian
  • Seretide (Route: Respiratory)
  • Lexomil
  • Laroxyl
  • Laroxyl (Dose:1 Unit(s))
  • Amisulpride
When using Telfast, the patient experienced the following unwanted symptoms/side effects: Acute Pulmonary Oedema, Myocardial InfarctionAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Acute Pulmonary Oedema, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#9295430
Exposure During Pregnancy, Pregnancy
This Exposure During Pregnancy side effect was reported by a physician from CH. A 37-year-old female patient (weight:NA) experienced the following symptoms/conditions: urticaria.The patient was prescribed Telfast (drug dosage: NA), which was initiated on
Mar 01, 2013. Concurrently used drugs:
  • Atarax
  • Cetallerg
  • Biotin
  • Ranitidine Hydrochloride
  • Passiflora Incarnata Flower
.After starting to take Telfast the consumer reported adverse symptoms, such as: Exposure During Pregnancy, PregnancyThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#9248212
Toxic Skin Eruption
This is a report of a 47-year-old female patient (weight: NA) from FR, suffering from the following health symptoms/conditions: eczema, who was treated with Telfast (dosage: NA, start time:
Feb 05, 2013), combined with:
  • Atarax
  • Copper Sulfate/zinc Oxide
  • Diprosone
  • Aerius
  • Pevisone
and developed a serious reaction and side effect(s): Toxic Skin Eruption after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in female patients, resulting in Toxic Skin Eruption side effect. The patient was hospitalized.
Telfast Side Effect Report#9030673
Tachycardia, Palpitations, Dyspnoea, Nervousness
This report suggests a potential Telfast Tachycardia side effect(s) that can have serious consequences. A 40-year-old female patient (weight: NA) from IE was diagnosed with the following symptoms/conditions: nasal congestion and used Telfast (dosage: NA) starting
Jan 02, 2013. After starting Telfast the patient began experiencing various side effects, including: Tachycardia, Palpitations, Dyspnoea, NervousnessAdditional drugs used concurrently: NA. Although Telfast demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Tachycardia, may still occur.
Telfast Side Effect Report#9018829
Local Swelling
This Local Swelling problem was reported by a health professional from SG. A 38-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On NS this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time: NA. When using Telfast, the patient experienced the following unwanted symptoms/side effects: Local SwellingAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Local Swelling, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#8996766
Hepatotoxicity
This Hepatotoxicity side effect was reported by a physician from DE. A 65-year-old female patient (weight:NA) experienced the following symptoms/conditions: urticaria.The patient was prescribed Telfast (drug dosage: NA), which was initiated on
Dec 04, 2012. Concurrently used drugs: NA..After starting to take Telfast the consumer reported adverse symptoms, such as: HepatotoxicityThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#8933871
Face Oedema, Eye Swelling
This is a report of a 78-year-old female patient (weight: NA) from SG, suffering from the following health symptoms/conditions: NA, who was treated with Telfast (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Face Oedema, Eye Swelling after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in female patients, resulting in Face Oedema side effect.
Telfast Side Effect Report#8922709
Paraesthesia, Pain, Muscular Weakness
This report suggests a potential Telfast Paraesthesia side effect(s) that can have serious consequences. A 59-year-old female patient (weight: NA) from GB was diagnosed with the following symptoms/conditions: NA and used Telfast (dosage: NA) starting 2006. After starting Telfast the patient began experiencing various side effects, including: Paraesthesia, Pain, Muscular WeaknessAdditional drugs used concurrently:
  • Omeprazole
  • Folic Acid
  • Adcal-d3 (750 Mg And 5 Mcg)
  • Prednisolone (5 Mg Once Every Other Day)
  • Crotamiton
  • Candesartan Cilexetil
  • Darbepoetin Alfa (Every Fortnight)
  • Diprobase Cream
The patient was hospitalized. Although Telfast demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Paraesthesia, may still occur.
Telfast Side Effect Report#8823119
Ventricular Arrhythmia, Electrocardiogram Qt Prolonged
This Ventricular Arrhythmia problem was reported by a health professional from PL. A 45-year-old male patient (weight: NA) was diagnosed with the following symptoms/conditions: neuropathic pain. On
Jun 10, 2012 this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time:
  • Methadone Hydrochloride
  • Amitriptyline
  • Depakine
  • Gabapentin
  • Prestarium
  • Indapen
  • Lidocaine
When using Telfast, the patient experienced the following unwanted symptoms/side effects: Ventricular Arrhythmia, Electrocardiogram Qt ProlongedThe 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 Ventricular Arrhythmia, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#8769675
Suicidal Ideation, Depressive Symptom
This Suicidal Ideation side effect was reported by a health professional from NO. A 54-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Telfast (drug dosage: NA), which was initiated on NS. Concurrently used drugs: NA..After starting to take Telfast the consumer reported adverse symptoms, such as: Suicidal Ideation, Depressive SymptomThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#7599731-4
Systemic Lupus Erythematosus, Paraesthesia, Urge Incontinence, No Therapeutic Response, Auricular Perichondritis
This is a report of a 44-year-old female patient (weight: NA) from Denmark, suffering from the following health symptoms/conditions: NA, who was treated with Telfast (fexofenadine (120 Milligram) (fexofenadine) (dosage: NA, start time:
Jan 01, 2005), combined with:
  • Tramadol (tramadol) (100 Milligram) (tramadol)
  • Escitalopram Oxalate (10 Mg (10 Mg, 1 In 1 D), Oral)
  • Ranitidin (ranitidine Hydrochloride) (ranitidine Hydorchloride)
  • Escitalopram Oxalate (20 Mg (20 Mg, 1 In 1 D), Oral)
  • Pentatop (cromoglicate Sodium) (200 Milligram) (cromoglicate Sodium)
  • L-thyroxin (levothyroxine Sodium) (88 Microgram) (levothyroxine Sodium
and developed a serious reaction and side effect(s): Systemic Lupus Erythematosus, Paraesthesia, Urge Incontinence, No Therapeutic Response, Auricular Perichondritis after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast (fexofenadine (120 Milligram) (fexofenadine) treatment in female patients, resulting in Systemic Lupus Erythematosus side effect.
Telfast Side Effect Report#7565239-5
Asthma, Cerebral Haemorrhage
This report suggests a potential Telfast (germany) Asthma side effect(s) that can have serious consequences. A female patient (weight: NA) from Switzerland was diagnosed with the following symptoms/conditions: NA and used Telfast (germany) (dosage: NA) starting
Feb 01, 2007. After starting Telfast (germany) the patient began experiencing various side effects, including: Asthma, Cerebral HaemorrhageAdditional drugs used concurrently:
  • Viani (Unk)
  • Xolair (375 Mg, Q2w)
  • Albuterol Sulfate
The patient was hospitalized. Although Telfast (germany) demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Asthma, may still occur.
Telfast Side Effect Report#7494035-2
Vasculitis Cerebral
This Vasculitis Cerebral problem was reported by a physician from Australia. A 53-year-old female patient (weight: NA) was diagnosed with the following symptoms/conditions: sinusitis,spondylitis,herpes zoster. On
Jan 01, 2005 this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time:
  • Humira
  • Doxycycline
  • Famvir
  • Panadol
  • Seretide
  • Panadol
  • Thyroxin
  • Remifemin
When using Telfast, the patient experienced the following unwanted symptoms/side effects: Vasculitis CerebralAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Vasculitis Cerebral, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#7399105-5
Hallucination
This Hallucination side effect was reported by a health professional from Israel. A 23-year-old male patient (weight:NA) experienced the following symptoms/conditions: rash.The patient was prescribed Telfast (drug dosage: NA), which was initiated on NS. Concurrently used drugs: NA..After starting to take Telfast the consumer reported adverse symptoms, such as: HallucinationThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#7285004-6
Hallucination
This is a report of a 23-year-old male patient (weight: NA) from Israel, suffering from the following health symptoms/conditions: NA, who was treated with Telfast (dosage: NA, start time: NS), combined with: NA. and developed a serious reaction and side effect(s): Hallucination after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in male patients, resulting in Hallucination side effect.
Telfast Side Effect Report#7219435-7
Visual Impairment, Libido Decreased, Memory Impairment, Spleen Disorder, Diabetes Mellitus, Performance Status Decreased, Unevaluable Event, Blood Pressure Increased, Chondrolysis
This report suggests a potential Telfast Visual Impairment side effect(s) that can have serious consequences. A male patient (weight: NA) from Germany was diagnosed with the following symptoms/conditions: NA and used Telfast (dosage: NA) starting
Oct 11, 2004. After starting Telfast the patient began experiencing various side effects, including: Visual Impairment, Libido Decreased, Memory Impairment, Spleen Disorder, Diabetes Mellitus, Performance Status Decreased, Unevaluable Event, Blood Pressure Increased, ChondrolysisAdditional drugs used concurrently:
  • Diclofenac
  • Antihypertensives
  • Ibuprofen
  • Cholesterol- And Triglyceride Reducers
Although Telfast demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Visual Impairment, may still occur.
Telfast Side Effect Report#7208916-8
Diabetes Mellitus, Spleen Disorder, Unevaluable Event, Chondrolysis, Liver Disorder, Metabolic Disorder
This Diabetes Mellitus problem was reported by a physician from Germany. A male patient (weight: NA) was diagnosed with the following symptoms/conditions: NA. On
Oct 11, 2004 this consumer started treatment with Telfast (dosage: NA). The following drugs were being taken at the same time:
  • Antihypertensives
  • Diclofenac
  • Cholesterol- And Triglyceride Reducers
  • Ibuprofen
When using Telfast, the patient experienced the following unwanted symptoms/side effects: Diabetes Mellitus, Spleen Disorder, Unevaluable Event, Chondrolysis, Liver Disorder, Metabolic DisorderAlthough all drugs are carefully tested before they are licensed for use, they carry side effect risks. Some side effects, such as Diabetes Mellitus, may become evident only after a product is in use by the general population.
Telfast Side Effect Report#7166554-X
Chondrolysis, Diabetes Mellitus, Liver Disorder, Spleen Disorder, Unevaluable Event
This Chondrolysis side effect was reported by a physician from Germany. A male patient (weight:NA) experienced the following symptoms/conditions: NA.The patient was prescribed Telfast (drug dosage: NA), which was initiated on
Oct 11, 2004. Concurrently used drugs:
  • Antihypertensives
  • Cholesterol- And Triglyceride Reducers
  • Ibuprofen
  • Diclofenac
.After starting to take Telfast the consumer reported adverse symptoms, such as: Chondrolysis, Diabetes Mellitus, Liver Disorder, Spleen Disorder, Unevaluable EventThese side effects may potentially be related to Telfast.
Telfast Side Effect Report#7149285-1
Chondrolysis, Liver Disorder, Spleen Disorder, Unevaluable Event
This is a report of a male patient (weight: NA) from Germany, suffering from the following health symptoms/conditions: NA, who was treated with Telfast (dosage: NA, start time:
Oct 11, 2004), combined with:
  • Antihypertensives
  • Cholesterol- And Triglyceride Reducers
  • Ibuprofen
  • Diclofenac
and developed a serious reaction and side effect(s): Chondrolysis, Liver Disorder, Spleen Disorder, Unevaluable Event after the beginning of treatment. This case can indicate the possible existence of increased vulnerability to Telfast treatment in male patients, resulting in Chondrolysis side effect.


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The appearance of Telfast 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.

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What are common Telfast Side Effects for Women?

Women Side EffectsReports
Dizziness 7
Tachycardia 6
Bradycardia 5
Balance Disorder 4
Nausea 4
Syncope 4
Tremor 4
Cardiac Arrest 3
Constipation 3
Extrasystoles 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.

    Telfast 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.

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