Zyrtec Hypersensitivity Side Effect Reports


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

This information will help you understand how side effects, such as Hypersensitivity, 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.


Abdominal Distension, Hypersensitivity, Myalgia, Fatigue, Abdominal Pain Upper

This Hypersensitivity side effect was reported by a consumer or non-health professional from US. A 59-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Zyrtec Tablets Ir 10mg (dosage: NA), which was started on Sep 18, 2013. Concurrently used drugs: NA. When starting to take Zyrtec Tablets Ir 10mg the consumer reported the following symptoms:
  • Abdominal Distension
  • Hypersensitivity
  • Myalgia
  • Fatigue
  • Abdominal Pain Upper
These side effects may potentially be related to Zyrtec Tablets Ir 10mg.
Hypersensitivity

This Hypersensitivity Zyrtec Liquid Gels 10 Mg side effect was reported by a consumer or non-health professional from US on Sep 17, 2013. A male , 31 years of age, weighting 160.0 lb, was diagnosed with and was treated with Zyrtec Liquid Gels 10 Mg. The patient presented the following health conditions:
  • Hypersensitivity
. Zyrtec Liquid Gels 10 Mg dosage: 1 Df, Qd,. Additional drugs used at the same time: NA.
Insomnia, Hyperaesthesia, Skin Irritation, Activities Of Daily Living Impaired, Hypersensitivity

This is a Zyrtec side effect report of a 34-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: multiple allergies, who was treated with Zyrtec (dosage:Several Years, start time: NS), combined with: NA., and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Insomnia
  • Hyperaesthesia
  • Skin Irritation
  • Activities Of Daily Living Impaired
  • Hypersensitivity
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Zyrtec treatment in female patients suffering from multiple allergies, resulting in Hypersensitivity.
Throat Tightness, Dysphonia, Muscle Tightness, Dyspnoea, Hypersensitivity

A 41-year-old female patient (weight: NA) from US with the following symptoms: NA started Zyrtec treatment (dosage: NA) on 201308. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Throat Tightness
  • Dysphonia
  • Muscle Tightness
  • Dyspnoea
  • Hypersensitivity
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Hypersensitivity.
Impulse-control Disorder, Restlessness, Hypersensitivity

A patient from US was prescribed and started Zyrtec Ir on May 30, 2013. Patient felt the following Zyrtec side effects: impulse-control disorder, restlessness, hypersensitivity Additional patient health information: male , child 12 years of age, weighting 100.0 lb, The consumer reported the following symptoms: . Zyrtec Ir dosage: NA. Concurrently used drugs: NA.
Pharyngeal Oedema, Hypersensitivity, Dysphagia, Condition Aggravated, Dry Eye

This report suggests a potential Zyrtec Liquid Gels 10 Mg Hypersensitivity side effect(s) that can have serious consequences. A 66-year-old patient from US (weight:NA) was diagnosed with the following health condition(s): seasonal allergy and used Zyrtec Liquid Gels 10 Mg (dosage: 1 Df, Bid,) starting Mar 17, 2012. Soon after starting Zyrtec Liquid Gels 10 Mg the patient began experiencing various side effects, including:
  • Pharyngeal Oedema
  • Hypersensitivity
  • Dysphagia
  • Condition Aggravated
  • Dry Eye
Drugs used concurrently:NA. Although Zyrtec Liquid Gels 10 Mg demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Hypersensitivity, Rash, Dyspnoea

An adverse event was reported by a physician on May 30, 2012 by a Female taking Zyrtec (dosage: NA) . Location: JAPAN , weighting 128.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: hypersensitivity, rash, dyspnoea. Additional medications/treatments:
Associated medications used:
  • Hokunalin
  • Omalizumab
  • Pulmicort
  • Montelukast Sodium
  • Symbicort
Erythema, Purpura, Swelling Face, Hypersensitivity, Rash Pruritic, Movement Disorder, Local Swelling

This Hypersensitivity problem was reported by a physician from UNITED STATES. A 38-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): NA.On Mar 16, 2012 a consumer started treatment with Zyrtec (dosage: NA). The following drugs/medications were being taken at the same time:
  • Multi-vitamin
  • Ampyra (10 Mg)
  • Betaseron
  • Flexeril
  • Singulair
  • Antivert
  • Prilosec
  • Skelaxin
When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Erythema
  • Purpura
  • Swelling Face
  • Hypersensitivity
  • Rash Pruritic
  • Movement Disorder
  • Local Swelling
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Hypersensitivity, Chest Discomfort, Dyspnoea

This is a Zyrtec side effect report of a 75-year-old female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Zyrtec (dosage: NA) starting Oct 06, 2011. Concurrently used drugs:
  • Aspirin
  • Olux E
  • Lorazepam
Soon after that, the consumer experienced the following of symptoms:
  • Hypersensitivity
  • Chest Discomfort
  • Dyspnoea
This opens a possibility that Zyrtec could cause Hypersensitivity and that some female patients may be more susceptible.
Hypersensitivity, Sneezing, Rhinorrhoea, Lacrimation Increased

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES on Jul 25, 2011. A female patient from UNITED STATES , 55 years of age, weighting 115.0 lb, was diagnosed with and was treated with Zyrtec. Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: hypersensitivity, sneezing, rhinorrhoea, lacrimation increased. Zyrtec dosage: Unk.
Associated medications used:
  • Guaifenesin (Unk)
  • Singulair (Unk)
  • Flector (Unk Patch, Unk)
These side effects may potentially be related to Zyrtec.
Hypersensitivity, Pruritus

This Hypersensitivity side effect was reported by a consumer or non-health professional from UNITED STATES. A 40-year-old female patient (weight:NA) experienced the following symptoms/conditions: multiple allergies. The patient was prescribed Zyrtec (dosage: 10 Mg), which was started on Jan 01, 2000. Concurrently used drugs: NA. When starting to take Zyrtec the consumer reported the following symptoms:
  • Hypersensitivity
  • Pruritus
These side effects may potentially be related to Zyrtec.
Hypersensitivity, Chest Discomfort, Feeling Abnormal, Diarrhoea, Dyspnoea, Headache, Dyspepsia, Urticaria, Swelling

This Hypersensitivity Zyrtec side effect was reported by a consumer or non-health professional from NORWAY on Dec 16, 2011. A male , 53 years of age, was treated with Zyrtec. The patient presented the following health conditions:
  • Hypersensitivity
  • Chest Discomfort
  • Feeling Abnormal
  • Diarrhoea
  • Dyspnoea
  • Headache
  • Dyspepsia
  • Urticaria
  • Swelling
. Zyrtec dosage: 1 Tablet. Additional drugs used at the same time:
  • Voltaren (50 Mg, Unk)
  • Voltaren (50 Mg, 1 Tablet)
  • Pinex Forte (1 Tablet (30 Mg Codeine Phosphate And 500 Mg Paracetamol))
Injury, Hypersensitivity, Thyroid Disorder, Hypothalamo-pituitary Disorder, Pulmonary Embolism, Caesarean Section, Hypochromic Anaemia, Pancreatic Disorder, Thrombocytopenia

This is a Zyrtec side effect report of a 32-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: hypersensitivity,coagulopathy, who was treated with Zyrtec (dosage:NA, start time: Mar 06, 2008), combined with:
  • Coumadin
  • Ibuprofen
  • Fioricet
  • Nuvaring
  • Nuvaring
  • Lovenox
, and developed a serious reaction and a Hypersensitivity side effect. The patient presented with:
  • Injury
  • Hypersensitivity
  • Thyroid Disorder
  • Hypothalamo-pituitary Disorder
  • Pulmonary Embolism
  • Caesarean Section
  • Hypochromic Anaemia
  • Pancreatic Disorder
  • Thrombocytopenia
which developed after the beginning of treatment. The patient was hospitalized. This side effect report can indicate a possible existence of increased vulnerability to Zyrtec treatment in female patients suffering from hypersensitivity,coagulopathy, resulting in Hypersensitivity.
Hypersensitivity

A female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Zyrtec treatment (dosage: Unk) on NS. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Hypersensitivity
. Concurrently used drugs:
  • Rhinocort (Unk)
  • Penicillin G Procaine (Unk)
This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Hypersensitivity.
Hypersensitivity

A female patient from UNITED STATES was prescribed and started Zyrtec on Aug 17, 2011. After Zyrtec was administered, patient encountered several Zyrtec side effects: hypersensitivity Additional patient health information: Female , 56 years of age, weighting 319.7 lb, The consumer reported the following symptoms: . Zyrtec dosage: 5 Mg, Unk. Concurrently used drugs:
  • Proventil-hfa (Unk)
  • Vitamin B-12 (50 Unk, Unk)
  • Multi-vitamin
  • Calcium + Vitamin D
  • Enbrel (50 Mg, Qwk)
  • Claritin (10 Unk, Unk)
  • Advair Hfa
  • Aleve (220 Unk, Unk)
Hypersensitivity

This report suggests a potential Zyrtec Hypersensitivity side effect(s) that can have serious consequences. A 59-year-old patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Zyrtec (dosage: NA) starting Mar 26, 2008. Soon after starting Zyrtec the patient began experiencing various side effects, including:
  • Hypersensitivity
Drugs used concurrently:
  • Tysabri
Although Zyrtec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Hypersensitivity, may still occur.
Hypersensitivity

An adverse event was reported by a health professional on Jul 08, 2011 by a Female taking Zyrtec (dosage: 10 Mg, Daily, Oral) . Location: UNITED STATES , 59 years of age, weighting 131.0 lb, patient began experiencing various side effects, including: Patient felt the following Zyrtec side effects: hypersensitivity. Additional medications/treatments:
Multiple prescriptions taken:
  • Singulair
  • Pepcid Ac 10 Mg (2 Tablets, Bid)
  • Prednisone (used As Directed)
  • Albuterol Inhaler (prn)
  • Epipen (prn)
  • Diphenhydramin (1 As Needed)
Hypersensitivity

This Hypersensitivity problem was reported by a health professional from UNITED STATES. A 50-year-old patient (weight: NA) was diagnosed with the following medical condition(s): pruritus.On Mar 14, 2006 a consumer started treatment with Zyrtec (dosage: 5mg Daily Po). The following drugs/medications were being taken at the same time: NA. When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Hypersensitivity
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Hypersensitivity, may become evident only after a product is in use by the general population.
Hypersensitivity, Aggression, Depression, Sensory Loss, Self Injurious Behaviour, Anger, Attention Deficit/hyperactivity Disorder

This is a Zyrtec side effect report of a 6-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: seasonal allergy and was treated with Zyrtec (dosage: 10 Mg Tablet 1 Per Day Oral) starting Jan 01, 2007. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Hypersensitivity
  • Aggression
  • Depression
  • Sensory Loss
  • Self Injurious Behaviour
  • Anger
  • Attention Deficit/hyperactivity Disorder
This opens a possibility that Zyrtec could cause Hypersensitivity and that some patients may be more susceptible.
Pneumonia, Hypersensitivity, Thrombocytopenia, Skin Discolouration, Pigmentation Disorder, Dry Mouth, Diabetes Mellitus, Dry Eye

This Hypersensitivity side effect was reported by a health professional from US on Jul 17, 2013. A female patient from US , 65 years of age, was diagnosed with and was treated with Zyrtec D. Patient felt the following Zyrtec side effects: pneumonia, hypersensitivity, thrombocytopenia, skin discolouration, pigmentation disorder, dry mouth, diabetes mellitus, dry eye. Zyrtec D dosage: NA.
Multiple prescriptions taken:
  • Humulog 75/25 (45 U)
  • Caltrate D (600 Mg)
  • Vitamin D (2000 U)
  • Fish Oil
  • Vitamin B12
  • Albuterol
  • Spiriva Handihaler (18 Mcg)
  • Spiriva Handihaler (18 Mcg)
The patient was hospitalized. These side effects may potentially be related to Zyrtec D.
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DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Zyrtec Hypersensitivity Causes and Reviews


An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions.

NIH: National Institute of Allergy and Infectious Diseases


Zyrtec Hypersensitivity 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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Pain (145)
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