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Zyrtec Insomnia Side Effects

Zyrtec Insomnia Side Effect Reports


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

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



Disturbance In Attention, Insomnia, Distractibility, Maternal Exposure During Pregnancy

This Insomnia side effect was reported by a consumer or non-health professional from US. A 32-year-old female patient (weight:NA) experienced the following symptoms/conditions: multiple allergies. The patient was prescribed Zyrtec (dosage: 1 Pill Once Daily Taken By Mouth), which was started on Aug 01, 2011. Concurrently used drugs: NA. When starting to take Zyrtec the consumer reported the following symptoms:
  • Disturbance In Attention
  • Insomnia
  • Distractibility
  • Maternal Exposure During Pregnancy
These side effects may potentially be related to Zyrtec.
Insomnia, Hyperaesthesia, Skin Irritation, Activities Of Daily Living Impaired, Hypersensitivity

This Insomnia Zyrtec side effect was reported by a consumer or non-health professional from US on Sep 10, 2013. A Female , 34 years of age, weighting 150.0 lb, was diagnosed with and was treated with Zyrtec. The patient presented the following health conditions:
  • Insomnia
  • Hyperaesthesia
  • Skin Irritation
  • Activities Of Daily Living Impaired
  • Hypersensitivity
. Zyrtec dosage: Several Years. Additional drugs used at the same time: NA.
Urinary Tract Infection, Insomnia

This is a Zyrtec-d side effect report of a 55-year-old female patient (weight:NA) from US, suffering from the following symptoms/conditions: NA, who was treated with Zyrtec-d (dosage:NA, start time: May 05, 2013), combined with: NA., and developed a serious reaction and a Insomnia side effect. The patient presented with:
  • Urinary Tract Infection
  • Insomnia
which developed after the beginning of treatment. This side effect report can indicate a possible existence of increased vulnerability to Zyrtec-d treatment in female patients suffering from NA, resulting in Insomnia.

Palpitations, Insomnia

A 88-year-old patient (weight: NA) from US with the following symptoms: NA started Zyrtec Ir treatment (dosage: NA) on NS. Soon after starting Zyrtec Ir treatment, the consumer experienced several side effects, including:
  • Palpitations
  • Insomnia
. Concurrently used drugs: NA. This finding indicates that some patients can be more vulnerable to developing Zyrtec Ir side effects, such as Insomnia.
Paraesthesia, Palpitations, Heart Rate Increased, Somnolence, Insomnia

A female patient from US was prescribed and started Zyrtec Ir on May 07, 2013. Patient felt the following Zyrtec side effects: paraesthesia, palpitations, heart rate increased, somnolence, insomnia Additional patient health information: Female , 72 years of age, weighting 160.0 lb, The consumer reported the following symptoms: . Zyrtec Ir dosage: NA. Concurrently used drugs: NA.
Feeling Jittery, Feeling Abnormal, Insomnia, Product Packaging Issue, Overdose, Product Quality Issue, Product Label Issue

This report suggests a potential Zyrtec Ir Insomnia side effect(s) that can have serious consequences. A 48-year-old female patient from US (weight:NA) was diagnosed with the following health condition(s): NA and used Zyrtec Ir (dosage: NA) starting Oct 29, 2012. Soon after starting Zyrtec Ir the patient began experiencing various side effects, including:
  • Feeling Jittery
  • Feeling Abnormal
  • Insomnia
  • Product Packaging Issue
  • Overdose
  • Product Quality Issue
  • Product Label Issue
Drugs used concurrently:NA. Although Zyrtec Ir demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Insomnia, may still occur.
Hallucination, Auditory, Insomnia

An adverse event was reported by a consumer or non-health professional on Sep 25, 2012 by a male taking Zyrtec Ir (dosage: NA) . Location: US , child 8 years of age, weighting 89.99 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: hallucination, auditory, insomnia. Additional medications/treatments:
Carotid Artery Occlusion, Cardiac Disorder, Arterial Therapeutic Procedure, Rhinorrhoea, Retching, Dysphonia, Constipation, Hypertension, Insomnia

This Insomnia problem was reported by a consumer or non-health professional from US. A 73-year-old female patient (weight: NA) was diagnosed with the following medical condition(s): chronic sinusitis.On 2012 a consumer started treatment with Zyrtec Ir (dosage: 10mg One Daily As Needed). The following drugs/medications were being taken at the same time: NA. When commencing Zyrtec Ir, the patient experienced the following unwanted symptoms /side effects:
  • Carotid Artery Occlusion
  • Cardiac Disorder
  • Arterial Therapeutic Procedure
  • Rhinorrhoea
  • Retching
  • Dysphonia
  • Constipation
  • Hypertension
  • Insomnia
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 Insomnia, may become evident only after a product is in use by the general population.
Chronic Sinusitis, Eating Disorder, Epistaxis, Dizziness, Nausea, Disturbance In Attention, Hair Texture Abnormal, Insomnia, Weight Decreased

This is a Zyrtec side effect report of a female patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: NA and was treated with Zyrtec (dosage: NA) starting Jun 01, 2008. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Chronic Sinusitis
  • Eating Disorder
  • Epistaxis
  • Dizziness
  • Nausea
  • Disturbance In Attention
  • Hair Texture Abnormal
  • Insomnia
  • Weight Decreased
This opens a possibility that Zyrtec could cause Insomnia and that some female patients may be more susceptible.
Influenza Like Illness, Insomnia, Injection Site Erythema, Dyspnoea, Irritability, Chills, Hyperhidrosis, Injection Site Rash, Heart Rate Increased

This Insomnia side effect was reported by a consumer or non-health professional from on May 14, 2012. A patient from , weighting 195.2 lb, was diagnosed with and was treated with Zyrtec. Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: influenza like illness, insomnia, injection site erythema, dyspnoea, irritability, chills, hyperhidrosis, injection site rash, heart rate increased. Zyrtec dosage: NA.
Associated medications used:
  • Incivek
  • Xanax
  • Dilaudid
  • Ribavirin
  • Pegasys
These side effects may potentially be related to Zyrtec.
Osteonecrosis Of Jaw, Anxiety, Muscle Spasms, Pain In Extremity, Headache, Insomnia, Osteomyelitis, Upper Respiratory Tract Infection

This Insomnia side effect was reported by a physician from UNITED STATES. A 45-year-old female patient (weight:NA) experienced the following symptoms/conditions: NA. The patient was prescribed Zyrtec (dosage: NA), which was started on Sep 22, 2004. Concurrently used drugs:
  • Citracal
  • Fosamax
  • Fosamax
When starting to take Zyrtec the consumer reported the following symptoms:
  • Osteonecrosis Of Jaw
  • Anxiety
  • Muscle Spasms
  • Pain In Extremity
  • Headache
  • Insomnia
  • Osteomyelitis
  • Upper Respiratory Tract Infection
These side effects may potentially be related to Zyrtec.
Blunted Affect, Insomnia, Suicidal Ideation, Disturbance In Attention, Depression, Anxiety, Irritability

This Insomnia Zyrtec side effect was reported by a consumer or non-health professional from UNITED STATES on Apr 26, 2012. A male , child 6 years of age, weighting 54.00 lb, was treated with Zyrtec. The patient presented the following health conditions:
  • Blunted Affect
  • Insomnia
  • Suicidal Ideation
  • Disturbance In Attention
  • Depression
  • Anxiety
  • Irritability
. Zyrtec dosage: NA. Additional drugs used at the same time:
  • Singulair (5 Mg)
Insomnia, Nausea, Constipation, Pain In Extremity, Breast Pain

This is a Zyrtec side effect report of a 70-year-old female patient (weight:NA) from UNITED STATES, suffering from the following symptoms/conditions: NA, who was treated with Zyrtec (dosage:NA, start time: Jun 10, 2011), combined with:
  • Nexium
, and developed a serious reaction and a Insomnia side effect. The patient presented with:
  • Insomnia
  • Nausea
  • Constipation
  • Pain In Extremity
  • Breast Pain
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 NA, resulting in Insomnia.
Gingival Pain, Insomnia, Pancytopenia, Jaundice, Viral Infection, Neutropenia, Cellulitis, Pyrexia, Haemolysis

A female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Zyrtec treatment (dosage: 10 Mg, Qd) on Aug 25, 2009. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Gingival Pain
  • Insomnia
  • Pancytopenia
  • Jaundice
  • Viral Infection
  • Neutropenia
  • Cellulitis
  • Pyrexia
  • Haemolysis
. Concurrently used drugs:
  • Soliris (900 Mg, Q2w)
The patient was hospitalized. This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Insomnia.
Anxiety, Insomnia, Hypoaesthesia, Musculoskeletal Stiffness, Muscle Spasms, Back Pain, Pain In Extremity, Flank Pain

A patient from UNITED STATES was prescribed and started Zyrtec on Dec 09, 2011. After Zyrtec was administered, patient encountered several Zyrtec side effects: anxiety, insomnia, hypoaesthesia, musculoskeletal stiffness, muscle spasms, back pain, pain in extremity, flank pain Additional patient health information: male , weighting 216.4 lb, The consumer reported the following symptoms: was diagnosed with and. Zyrtec dosage: NA. Concurrently used drugs:
  • Cialis (20 Mg, Prn)
  • Norco (0.5 Df, Prn)
  • Nasacort Aq (Unk, Prn)
  • Lunesta (Unk, 3/w)
Insomnia, Anxiety, Dependence

This report suggests a potential Zyrtec Insomnia side effect(s) that can have serious consequences. A 86-year-old patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): NA and used Zyrtec (dosage: Reduced To 1/2 A Tablet Per Day) starting NS. Soon after starting Zyrtec the patient began experiencing various side effects, including:
  • Insomnia
  • Anxiety
  • Dependence
Drugs used concurrently:NA. Although Zyrtec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Insomnia, may still occur.
Anxiety, Dependence, Insomnia

An adverse event was reported by a consumer or non-health professional on Sep 26, 2011 by a male taking Zyrtec (dosage: Reduced To 1/2 A Tablet Per Day) . Location: UNITED STATES , 86 years of age, patient began experiencing various side effects, including: Patient felt the following Zyrtec side effects: anxiety, dependence, insomnia. Additional medications/treatments:
Night Sweats, Swelling Face, Skin Burning Sensation, Urticaria, Pruritus, Insomnia, Eye Pain

This Insomnia problem was reported by a consumer or non-health professional from CANADA. A female patient (weight: NA) was diagnosed with the following medical condition(s): hypersensitivity,rheumatoid arthritis.On Mar 26, 2011 a consumer started treatment with Zyrtec (dosage: NA). The following drugs/medications were being taken at the same time:
  • Cimzia
  • Prednisone
  • Ativan
When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Night Sweats
  • Swelling Face
  • Skin Burning Sensation
  • Urticaria
  • Pruritus
  • Insomnia
  • Eye Pain
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Insomnia, may become evident only after a product is in use by the general population.
Insomnia, Pruritus, Disturbance In Attention

This is a Zyrtec side effect report of a 17-year-old patient (weight: NA) from UNITED STATES. The patient developed the following symptoms/conditions: seasonal allergy and was treated with Zyrtec (dosage: 10mg Per Day) starting May 12, 2008. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Insomnia
  • Pruritus
  • Disturbance In Attention
This opens a possibility that Zyrtec could cause Insomnia and that some patients may be more susceptible.
Insomnia, Feeling Drunk, Procedural Pain, Activities Of Daily Living Impaired, Knee Operation, Somnolence

This Insomnia side effect was reported by a consumer or non-health professional from UNITED STATES on Feb 14, 2011. A female patient from UNITED STATES , weighting 170.0 lb, was diagnosed with and was treated with Zyrtec. Patient felt the following Zyrtec side effects: insomnia, feeling drunk, procedural pain, activities of daily living impaired, knee operation, somnolence. Zyrtec dosage: NA.
Multiple prescriptions taken:
  • Acetylsalicylic Acid (Unk)
  • Lipitor (20 Mg, 1x/day)
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 Insomnia Causes and Reviews


What is Insomnia?

Insomnia is a common sleep disorder. If you have it, you may have trouble falling asleep, staying asleep, or both. As a result, you may get too little sleep or have poor-quality sleep. You may not feel refreshed when you wake up.

What are the symptoms of Insomnia?

Symptoms of Insomnia include:

  • Lying awake for a long time before you fall asleep
  • Sleeping for only short periods
  • Being awake for much of the night
  • Feeling as if you haven't slept at all
  • Waking up too early
What are the types of Insomnia?

Insomnia can be acute (short-term) or chronic (ongoing). Acute Insomnia is common. Common causes include stress at work, family pressures, or a traumatic event. It usually lasts for days or weeks.

Chronic Insomnia lasts for a month or longer. Most cases of chronic Insomnia are secondary. This means they are the symptom or side effect of some other problem, such as certain medical conditions, medicines, and other sleep disorders. Substances such as caffeine, tobacco, and alcohol can also be a cause.

Sometimes chronic Insomnia is the primary problem. This means that it is not caused by something else. Its cause is not well understood, but long-lasting stress, emotional upset, travel and shift work can be factors. Primary Insomnia usually lasts more than one month.

Who gets Insomnia?

Insomnia is common. It affects women more often than men. You can get it at any age, but older adults are more likely to have it. You are also at higher risk of Insomnia if you

  • Have a lot of stress
  • Are depressed or have other emotional distress, such as divorce or death of a spouse
  • Have a lower income
  • Work at night or have frequent major shifts in your work hours
  • Travel long distances with time changes
  • Have an inactive lifestyle
  • Are African American; research shows that African Americans take longer to fall asleep, don't sleep as well, and have more sleep-related breathing problems than whites.
What other problems can Insomnia cause?

Insomnia can cause daytime sleepiness and a lack of energy. It also can make you feel anxious, depressed, or irritable. You may have trouble focusing on tasks, paying attention, learning, and remembering. Insomnia also can cause other serious problems. For example, it could make you may feel drowsy while driving. This could cause you get into a car accident.

How is Insomnia diagnosed?

To diagnose Insomnia, your health care provider

  • Takes your medical history
  • Asks for your sleep history. Your provider will ask you for details about your sleep habits.
  • Does a physical exam, to rule out other medical problems that might cause Insomnia
  • May recommend a sleep study. A sleep study measures how well you sleep and how your body responds to sleep problems.
What are the treatments for Insomnia?

Treatments include lifestyle changes, counseling, and medicines:

  • Lifestyle changes, including good sleep habits, often help relieve acute (short-term) Insomnia. These changes might make it easier for you to fall asleep and stay asleep.
  • A type of counseling called cognitive-behavioral therapy (CBT) can help relieve the anxiety linked to chronic (ongoing) Insomnia
  • Several medicines also can help relieve your Insomnia and allow you to re-establish a regular sleep schedule

If your Insomnia is the symptom or side effect of another problem, it's important to treat that problem (if possible).

NIH: National Heart, Lung, and Blood Institute


Zyrtec Insomnia 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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