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Zyrtec Fatigue Side Effects

Zyrtec Fatigue Side Effect Reports


The following Zyrtec Fatigue side effect reports were submitted by healthcare professionals and consumers.

This information will help you understand how side effects, such as Fatigue, can occur, and what you can do about them.

A side effect could appear soon after you start Zyrtec or it might take time to develop.



Suicide Attempt, Overdose, Fatigue

This Fatigue side effect was reported by a physician from DE. A 23-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Zyrtec (dosage: NA), which was started on 201312. Concurrently used drugs: NA. When starting to take Zyrtec the consumer reported the following symptoms:
  • Suicide Attempt
  • Overdose
  • Fatigue
These side effects may potentially be related to Zyrtec.
Abdominal Distension, Hypersensitivity, Myalgia, Fatigue, Abdominal Pain Upper

This Fatigue Zyrtec Tablets Ir 10mg side effect was reported by a consumer or non-health professional from US on Oct 02, 2013. A Female , 59 years of age, weighting 120.0 lb, was treated with Zyrtec Tablets Ir 10mg. The patient presented the following health conditions:
  • Abdominal Distension
  • Hypersensitivity
  • Myalgia
  • Fatigue
  • Abdominal Pain Upper
. Zyrtec Tablets Ir 10mg dosage: NA. Additional drugs used at the same time: NA.
Lethargy, Fatigue

This is a Zyrtec Liquid Gels 10 Mg side effect report of a 42-year-old patient (weight:NA) from US, suffering from the following symptoms/conditions: hypersensitivity, who was treated with Zyrtec Liquid Gels 10 Mg (dosage:1 Df, start time: Mar 08, 2013), combined with:
  • Clonapin (1 Mg,)
, and developed a serious reaction and a Fatigue side effect. The patient presented with:
  • Lethargy
  • Fatigue
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Zyrtec Liquid Gels 10 Mg treatment in patients suffering from hypersensitivity, resulting in Fatigue.

Dizziness, Feeling Abnormal, Fatigue, Product Substitution Issue

A 28-year-old female patient (weight: NA) from US with the following symptoms: NA started Zyrtec Liquid Gels 10 Mg treatment (dosage: 1 Df, Qd,) on NS. Soon after starting Zyrtec Liquid Gels 10 Mg treatment, the consumer experienced several side effects, including:
  • Dizziness
  • Feeling Abnormal
  • Fatigue
  • Product Substitution Issue
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Zyrtec Liquid Gels 10 Mg side effects, such as Fatigue.
Peripheral Coldness, Asthenia, Fatigue, Product Label Issue

A female patient from US was prescribed and started Zyrtec Liquid Gels 10 Mg on Sep 17, 2013. Patient felt the following Zyrtec side effects: peripheral coldness, asthenia, fatigue, product label issue Additional patient health information: Female , 87 years of age, weighting 150.7 lb, The consumer reported the following symptoms: was diagnosed with and. Zyrtec Liquid Gels 10 Mg dosage: 1 Df,. Concurrently used drugs: NA.
Fatigue, Somnolence

This report suggests a potential Zyrtec Liquid Gels 10 Mg Fatigue side effect(s) that can have serious consequences. A 75-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): nasal dryness and used Zyrtec Liquid Gels 10 Mg (dosage: 1 Df, Qd,) starting NS. Soon after starting Zyrtec Liquid Gels 10 Mg the patient began experiencing various side effects, including:
  • Fatigue
  • Somnolence
Drugs used concurrently:NA. Although Zyrtec Liquid Gels 10 Mg demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Fatigue, may still occur.
Conjunctivitis Allergic, Hypersomnia, Rash, Fatigue

An adverse event was reported by a consumer or non-health professional on Aug 17, 2013 by a Female taking Zyrtec 20 Ml (dosage: NA) . Location: AU , child 3 years of age, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: conjunctivitis allergic, hypersomnia, rash, fatigue. Additional medications/treatments:
Dyspnoea, Tachycardia, Fatigue

This Fatigue problem was reported by a physician from TH. A 30-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Zyrtec (dosage: NA). The following drugs/medications were being taken at the same time: NA. When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Dyspnoea
  • Tachycardia
  • Fatigue
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Fatigue, may become evident only after a product is in use by the general population.
Mental Impairment, Speech Disorder, Gait Disturbance, Fatigue, Sedation, Hypotonia

This is a Zyrtec Ir side effect report of a 49-year-old female patient (weight: NA) from US. The patient developed the following symptoms/conditions: NA and was treated with Zyrtec Ir (dosage: NA) starting Apr 10, 2013. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Mental Impairment
  • Speech Disorder
  • Gait Disturbance
  • Fatigue
  • Sedation
  • Hypotonia
This opens a possibility that Zyrtec Ir could cause Fatigue and that some female patients may be more susceptible.
Mood Altered, Headache, Anger, Personality Change, Fatigue

This Fatigue side effect was reported by a consumer or non-health professional from US on Sep 17, 2012. A female patient from US , 55 years of age, weighting 158.0 lb, was diagnosed with and was treated with Zyrtec. Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: mood altered, headache, anger, personality change, fatigue. Zyrtec dosage: 10 Mg 1x Po. These side effects may potentially be related to Zyrtec.
Suicidal Ideation, Hallucination, Auditory, Depression, Thinking Abnormal, Hypersomnia, Fatigue, Off Label Use, Therapeutic Response Unexpected

This Fatigue side effect was reported by a health professional from US. A 50-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Zyrtec (dosage: NA), which was started on Jun 10, 2012. Concurrently used drugs: NA. When starting to take Zyrtec the consumer reported the following symptoms:
  • Suicidal Ideation
  • Hallucination, Auditory
  • Depression
  • Thinking Abnormal
  • Hypersomnia
  • Fatigue
  • Off Label Use
  • Therapeutic Response Unexpected
These side effects may potentially be related to Zyrtec.
Fatigue, Lacrimation Increased, Somnolence, Vision Blurred

This Fatigue Zyrtec side effect was reported by a consumer or non-health professional from UNITED STATES on May 16, 2011. A Female , 61 years of age, was diagnosed with and was treated with Zyrtec. The patient presented the following health conditions:
  • Fatigue
  • Lacrimation Increased
  • Somnolence
  • Vision Blurred
. Zyrtec dosage: 10mg Per Day. Additional drugs used at the same time:
  • Veramyst (2spr Per Day)
  • Triamterene And Hydrochlorothiazide
  • Crestor
Bronchitis, Dyspepsia, Chest Discomfort, Musculoskeletal Pain, Fatigue, Dyspnoea

This is a Zyrtec side effect report of a 70-year-old patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Zyrtec (dosage:NA, start time: Feb 15, 2012), combined with:
  • Lisinopril
  • Hydrochlorothiazide
  • Warfarin Sodium (5 Mg;qd;po)
, and developed a serious reaction and a Fatigue side effect. The patient presented with:
  • Bronchitis
  • Dyspepsia
  • Chest Discomfort
  • Musculoskeletal Pain
  • Fatigue
  • Dyspnoea
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Zyrtec treatment in patients suffering from NA, resulting in Fatigue.
Sleep Disorder, Fatigue, Blood Testosterone Decreased

A patient (weight: NA) from UNITED STATES with the following symptoms: hypersensitivity,insomnia,hypertension,blood testosterone decreased,sinus congestion started Zyrtec treatment (dosage: NA) on Nov 01, 2010. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Sleep Disorder
  • Fatigue
  • Blood Testosterone Decreased
. Concurrently used drugs:
  • Sonata
  • Diovan
  • Androgel
  • Flonase
This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Fatigue.
Fatigue, Dyspnoea, Pain In Extremity, Oedema Peripheral, Pulmonary Embolism, Deep Vein Thrombosis

A female patient from UNITED STATES was prescribed and started Zyrtec-d 12 Hour on Mar 15, 2012. After Zyrtec was administered, patient encountered several Zyrtec side effects: fatigue, dyspnoea, pain in extremity, oedema peripheral, pulmonary embolism, deep vein thrombosis Additional patient health information: Female , 41 years of age, weighting 317.5 lb, The consumer reported the following symptoms: was diagnosed with and. Zyrtec-d 12 Hour dosage: 5mg/120mg. Concurrently used drugs:
  • Fluticasone Furoate (150 ?g (daily Dose), , Nasal)
  • Yasmin
The patient was hospitalized.
Laryngitis, Pyrexia, Oropharyngeal Pain, Lymphocyte Count Decreased, Fatigue, Nasopharyngitis, Cough, Bronchitis, Viral Infection

This report suggests a potential Zyrtec Fatigue side effect(s) that can have serious consequences. A 50-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Zyrtec (dosage: NA) starting Jan 13, 2011. Soon after starting Zyrtec the patient began experiencing various side effects, including:
  • Laryngitis
  • Pyrexia
  • Oropharyngeal Pain
  • Lymphocyte Count Decreased
  • Fatigue
  • Nasopharyngitis
  • Cough
  • Bronchitis
  • Viral Infection
Drugs used concurrently:
  • Aspirin
  • Gilenya (0.5 Mg, Qd, Oral)
  • Toprol-xl
  • Univasc
  • Todvol
  • Multivitamins (ascorbic Acid, Ergocalciferol, Folic Acid, Nicotinamide
  • Necon (ethinylestradiol, Norethisterone)
Although Zyrtec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Fatigue, may still occur.
Fatigue, Oral Pain, Oral Discomfort, Malaise, Dizziness, Asthenia

An adverse event was reported by a consumer or non-health professional on Nov 09, 2011 by a male taking Zyrtec (dosage: NA) was diagnosed with and. Location: UNITED STATES , 43 years of age, patient began experiencing various side effects, including: Patient felt the following Zyrtec side effects: fatigue, oral pain, oral discomfort, malaise, dizziness, asthenia. Additional medications/treatments:
Multiple prescriptions taken:
  • Humira
Fear, Chest Pain, Fatigue, Deformity, Pulmonary Embolism, Pneumonia, Injury, Muscle Strain, Visual Impairment

This Fatigue problem was reported by a health professional from UNITED STATES. A 38-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): multiple allergies,contraception.On Jan 01, 2008 a consumer started treatment with Zyrtec (dosage: NA). The following drugs/medications were being taken at the same time:
  • Yasmin (Unk)
  • Pristiq (100 Mg, Qd)
When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Fear
  • Chest Pain
  • Fatigue
  • Deformity
  • Pulmonary Embolism
  • Pneumonia
  • Injury
  • Muscle Strain
  • Visual Impairment
The patient was hospitalized. Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Fatigue, may become evident only after a product is in use by the general population.
Diarrhoea, Vomiting, Fatigue

This is a Zyrtec side effect report of a 65-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: multiple allergies and was treated with Zyrtec (dosage: 1 Tablet) starting Sep 01, 2007. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Diarrhoea
  • Vomiting
  • Fatigue
This opens a possibility that Zyrtec could cause Fatigue and that some female patients may be more susceptible.
Depression, Pulmonary Embolism, Stress, Anxiety, Vertigo, Fatigue, Migraine, Deep Vein Thrombosis

This Fatigue side effect was reported by a consumer or non-health professional from UNITED STATES on Dec 23, 2011. A female patient from UNITED STATES , 28 years of age, weighting 153.0 lb, was treated with Zyrtec. Patient felt the following Zyrtec side effects: depression, pulmonary embolism, stress, anxiety, vertigo, fatigue, migraine, deep vein thrombosis. Zyrtec dosage: NA.
Multiple prescriptions taken:
  • Prevacid
  • Colace
  • Yasmin
  • Lortab (Unk)
  • Ibuprofen
  • Prednisone Tab (Unk)
  • Yasmin (Unk Unk, Unk)
  • One A Day (Unk Unk, Qd)
The patient was hospitalized. These side effects may potentially be related to Zyrtec.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Zyrtec Fatigue Causes and Reviews


Everyone feels tired now and then. Sometimes you may just want to stay in bed. But, after a good night's sleep, most people feel refreshed and ready to face a new day. If you continue to feel tired for weeks, it's time to see your doctor. He or she may be able to help you find out what's causing your Fatigue and recommend ways to relieve it.

Fatigue itself is not a disease. Medical problems, treatments, and personal habits can add to Fatigue. These include

  • Taking certain medicines, such as antidepressants, antihistamines, and medicines for nausea and pain
  • Having medical treatments, like chemotherapy and radiation
  • Recovering from major surgery
  • Anxiety, stress, or depression
  • Staying up too late
  • Drinking too much alcohol or too many caffeinated drinks
  • Pregnancy

One disorder that causes extreme Fatigue is chronic Fatigue syndrome (CFS). This Fatigue is not the kind of tired feeling that goes away after you rest. Instead, it lasts a long time and limits your ability to do ordinary daily activities.

NIH: National Institute on Aging


Zyrtec Fatigue Reviews

Fri, 21 May 2010

I took one dose and experienced a bout of pancreatitis. I suffer from chronic pancreatitis and know what most of my "triggers" are.....never thought a simple allergy medication would cause such a problem, I think I would rather suffer allergies than risk pancreatitis.

Sat, 05 Nov 2011

Started on Zyrtec on the suggestion of my dermatologist for treatment of hives. Rash that resulted from the Zyrtec a MILLION times worse than the original hives. Had the same reaction to Seldane.

Tue, 09 Feb 2010

I have Type 2 Diabetes, when taking my level in the morning I noticed my level was elevated, and the only thing I had ingested was a Zyrtec pill about 2 hours prior? Could the pill be the cause?

Wed, 03 Dec 2008
Does Zyrtec inrease blood sugar levels? I have been taking 10m a day for 10 days and have notices symptoms of high blood sugar, when tested it was in the high 100's. Has anyone heard of this side effect?
Sat, 13 Aug 2011
I have had and am having a bad reaction to Zyrtec. My eyes are inflamed and my throat is sore. Lips are swollen. My tongue is white. I will be forced to go to the Emergency at the hospital.
Sun, 28 Mar 2010
I took Zyrtec for a week and while it does solve my allergy issues, it makes me a raving lunatic. Severe aggression, mood swings, and nightmares are the norm for me n this medicine. I would not recommend it if you are taking any anti anxiety or anti depressants.
Mon, 23 May 2011
bad gastritis or abdominal pain; had to get into tub with hot shower on my belly;never had a worse experience or pain; thought I was going to die; malaise; moderate ear pain
DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

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Top Zyrtec Side Effects

Pruritus (212)
Pain (145)
Fatigue (145)
Dizziness (140)
Somnolence (133)
Urticaria (132)
Dyspnoea (132)
Nausea (116)
Hypersensitivity (114)
Headache (113)
Insomnia (112)
Depression (105)
Feeling Abnormal (105)
Rash (103)
Anxiety (96)
Off Label Use (94)
Convulsion (93)
Product Quality Issue (92)
Condition Aggravated (80)
Abnormal Behaviour (79)
Loss Of Consciousness (43)
Aggression (43)
Overdose (41)
Withdrawal Syndrome (39)
Injury (39)
Pulmonary Embolism (38)
Irritability (36)
Vomiting (36)
Pyrexia (36)
Abdominal Pain Upper (35)
Deep Vein Thrombosis (34)
Hallucination (34)
Fall (34)
Asthma (33)
Diarrhoea (31)
Palpitations (30)
Malaise (30)
Suicidal Ideation (29)
Blood Pressure Increased (28)
Abdominal Pain (28)
Disturbance In Attention (27)
Cough (27)
Pain In Extremity (27)
Contusion (26)
Dry Mouth (26)
Chest Discomfort (26)
Anger (25)
Cholecystitis Chronic (25)
Weight Increased (25)
Back Pain (24)

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