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Zyrtec Diarrhoea Side Effects

Zyrtec Diarrhoea Side Effect Reports


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

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



Diarrhoea, Dizziness, Nausea, Somnolence

This Diarrhoea side effect was reported by a consumer or non-health professional from US. A 60-year-old patient (weight:NA) experienced the following symptoms/conditions: respiratory tract congestion. The patient was prescribed Zyrtec Liquid Gels 10 Mg (dosage: 1df, Once,), which was started on Oct 01, 2012. Concurrently used drugs:
  • Hydrochlorothiazide 25 Mg (1 Df, Qd,)
When starting to take Zyrtec Liquid Gels 10 Mg the consumer reported the following symptoms:
  • Diarrhoea
  • Dizziness
  • Nausea
  • Somnolence
These side effects may potentially be related to Zyrtec Liquid Gels 10 Mg.
Diarrhoea, Off Label Use

This Diarrhoea Zyrtec Liquid Gels 10 Mg side effect was reported by a consumer or non-health professional from US on Sep 17, 2013. A Female , 81 years of age, weighting 170.4 lb, was diagnosed with and was treated with Zyrtec Liquid Gels 10 Mg. The patient presented the following health conditions:
  • Diarrhoea
  • Off Label Use
. Zyrtec Liquid Gels 10 Mg dosage: 1 Df, Once,. Additional drugs used at the same time:
  • Vitamin D 5000 Mg (1x Daily)
  • Multivitamin 3500 Mg (1x Daily)
  • Fish Oil 1000 Mg (1x Daily)
  • Paxil (Unk)
Upper Respiratory Tract Infection, Eye Swelling, Diarrhoea, Ear Pain, Abdominal Pain

This is a Zyrtec side effect report of a 64-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: Jan 01, 2011), combined with:
  • Nexium
  • Synthroid
  • Revlimid (15 Mg, 21/7, Po)
  • Cymbalta
  • Antibiotics (antibiotics)
  • Revlimid (15 Mg, 21/7, Po)
, and developed a serious reaction and a Diarrhoea side effect. The patient presented with:
  • Upper Respiratory Tract Infection
  • Eye Swelling
  • Diarrhoea
  • Ear Pain
  • Abdominal 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 Diarrhoea.

Catheter Site Pruritus, Diarrhoea

A 71-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Zyrtec treatment (dosage: NA) on Mar 19, 2011. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Catheter Site Pruritus
  • Diarrhoea
. Concurrently used drugs:
  • Potassium Chloride
  • Protonix
  • Amitriptyline Hcl
  • Elmiron
  • Flolan
  • Lasix
  • Coumadin
  • Zetia
This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Diarrhoea.
Somnolence, Diarrhoea, Abdominal Pain Upper, Nausea

A patient from UNITED STATES was prescribed and started Zyrtec on May 22, 2012. Patient felt the following Zyrtec side effects: somnolence, diarrhoea, abdominal pain upper, nausea Additional patient health information: male , 44 years of age, weighting 160.0 lb, The consumer reported the following symptoms: was diagnosed with and. Zyrtec dosage: 10 Mg Prn Po. Concurrently used drugs:
  • Zinc 50 Mg Target Corporation -origin- (50 Mg Prn Po)
Cholelithiasis, Cholecystitis Chronic, Abdominal Pain, Diarrhoea, Nausea, Cholecystitis Acute, Flatulence, Dyspepsia, Discomfort

This report suggests a potential Zyrtec Diarrhoea side effect(s) that can have serious consequences. A 27-year-old female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): seasonal allergy,contraception,acne and used Zyrtec (dosage: Unk Unk, Prn) starting Oct 01, 2007. Soon after starting Zyrtec the patient began experiencing various side effects, including:
  • Cholelithiasis
  • Cholecystitis Chronic
  • Abdominal Pain
  • Diarrhoea
  • Nausea
  • Cholecystitis Acute
  • Flatulence
  • Dyspepsia
  • Discomfort
Drugs used concurrently:
  • Drospirenone And Ethinyl Estradiol (Unk)
  • Drospirenone And Ethinyl Estradiol
  • Meclizine (25 Mg, Tid)
  • Yasmin
  • Dicyclomine (20 Mg, Unk)
  • Omeprazole (20 Mg, Qd)
  • Ibuprofen (Unk Unk, Prn)
  • Yasmin (Unk)
The patient was hospitalized. Although Zyrtec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Diarrhoea, may still occur.
Diarrhoea, Vomiting, Fatigue

An adverse event was reported by a consumer or non-health professional on Jan 03, 2012 by a Female taking Zyrtec (dosage: 1 Tablet) was diagnosed with and. Location: UNITED STATES , 65 years of age, weighting 162.0 lb, patient began experiencing various side effects, including: Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: diarrhoea, vomiting, fatigue. Additional medications/treatments:
Hypersensitivity, Chest Discomfort, Feeling Abnormal, Diarrhoea, Dyspnoea, Headache, Dyspepsia, Urticaria, Swelling

This Diarrhoea problem was reported by a consumer or non-health professional from NORWAY. A 53-year-old patient (weight: NA) was diagnosed with the following medical condition(s): NA.On NS a consumer started treatment with Zyrtec (dosage: 1 Tablet). The following drugs/medications were being taken 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))
When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Hypersensitivity
  • Chest Discomfort
  • Feeling Abnormal
  • Diarrhoea
  • Dyspnoea
  • Headache
  • Dyspepsia
  • Urticaria
  • Swelling
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Diarrhoea, may become evident only after a product is in use by the general population.
Decreased Appetite, Food Poisoning, Therapeutic Response Unexpected, Vomiting, Weight Decreased, Diarrhoea, Nausea

This is a Zyrtec side effect report of a 59-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 Jul 01, 2007. Concurrently used drugs:
  • Vitamin Tab
  • Lovaza (1g Four Times Per Day)
Soon after that, the consumer experienced the following of symptoms:
  • Decreased Appetite
  • Food Poisoning
  • Therapeutic Response Unexpected
  • Vomiting
  • Weight Decreased
  • Diarrhoea
  • Nausea
This opens a possibility that Zyrtec could cause Diarrhoea and that some female patients may be more susceptible.
Haematochezia, Diarrhoea, Product Quality Issue, Off Label Use

This Diarrhoea side effect was reported by a consumer or non-health professional from UNITED STATES on Sep 16, 2011. A female patient from UNITED STATES , child 2 years of age, weighting 20.00 lb, was treated with Zyrtec. Directly after treatment started, patient experienced the unwanted or unexpected Zyrtec side effects: haematochezia, diarrhoea, product quality issue, off label use. Zyrtec dosage: NA. These side effects may potentially be related to Zyrtec.
Haematochezia, Off Label Use, Product Quality Issue, Diarrhoea

This Diarrhoea side effect was reported by a consumer or non-health professional from UNITED STATES. A 2-year-old female patient (weight:NA) experienced the following symptoms/conditions: urticaria pigmentosa. The patient was prescribed Zyrtec (dosage: 1/2 Of A 10 Mg Tablet Every Day During The Spring And Fall.), which was started on Sep 05, 2011. Concurrently used drugs: NA. When starting to take Zyrtec the consumer reported the following symptoms:
  • Haematochezia
  • Off Label Use
  • Product Quality Issue
  • Diarrhoea
These side effects may potentially be related to Zyrtec.
Nausea, Diarrhoea, Malaise, Gastroenteritis Viral, Vomiting

This Diarrhoea Zyrtec side effect was reported by a consumer or non-health professional from UNITED STATES on Jul 12, 2011. A Female , 80 years of age, was treated with Zyrtec. The patient presented the following health conditions:
  • Nausea
  • Diarrhoea
  • Malaise
  • Gastroenteritis Viral
  • Vomiting
. Zyrtec dosage: NA. Additional drugs used at the same time:
  • Enablex /01760401/
  • Caltrate Plus-d
  • Prolia (60 Mg, Q6mo)
  • Hydroxychloroquine
  • Vitamins /00067501/
  • Lyrica
  • Nexium /01479303/
  • Multi-vitamins
Diarrhoea, Gallbladder Disorder, Cholecystitis Chronic, Pain, Depression, Back Pain, Anxiety, Abdominal Discomfort, Abdominal Pain Upper

This is a Zyrtec side effect report of a 31-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: Jan 01, 2007), combined with:
  • Hydrocodone Bitartrate (Unk)
  • Percocet
  • Xanax
  • Yaz (Unk Unk, Qd)
  • Yaz
  • Motrin (Unk)
  • Paxil
  • Prilosec
, and developed a serious reaction and a Diarrhoea side effect. The patient presented with:
  • Diarrhoea
  • Gallbladder Disorder
  • Cholecystitis Chronic
  • Pain
  • Depression
  • Back Pain
  • Anxiety
  • Abdominal Discomfort
  • Abdominal Pain Upper
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 NA, resulting in Diarrhoea.
Aphagia, Sensation Of Foreign Body, Pruritus, Candidiasis, Alopecia, Thrombosis, Fatigue, Diarrhoea, Rash

A 78-year-old female patient (weight: NA) from UNITED STATES with the following symptoms: NA started Zyrtec treatment (dosage: 10 Mg) on Mar 01, 2011. Soon after starting Zyrtec treatment, the consumer experienced several side effects, including:
  • Aphagia
  • Sensation Of Foreign Body
  • Pruritus
  • Candidiasis
  • Alopecia
  • Thrombosis
  • Fatigue
  • Diarrhoea
  • Rash
. Concurrently used drugs:
  • Nexavar (Daily Dose 400 Mg)
  • Nexavar (400 Mg, Bid)
  • Levothroid (125 Mcg)
  • Spiriva
  • Biotene
This finding indicates that some patients can be more vulnerable to developing Zyrtec side effects, such as Diarrhoea.
Biliary Dyskinesia, Abdominal Pain, Gallbladder Cholesterolosis, Abdominal Discomfort, Cholecystitis Chronic, Nausea, Gallbladder Injury, Back Pain, Diarrhoea

A female patient from UNITED STATES was prescribed and started Zyrtec on Oct 20, 2010. After Zyrtec was administered, patient encountered several Zyrtec side effects: biliary dyskinesia, abdominal pain, gallbladder cholesterolosis, abdominal discomfort, cholecystitis chronic, nausea, gallbladder injury, back pain, diarrhoea Additional patient health information: Female , weighting 259.9 lb, The consumer reported the following symptoms: . Zyrtec dosage: NA. Concurrently used drugs:
  • Yaz (Unk)
  • Yaz
  • Hydrochlorothiazide
  • Prilosec
  • Lora Tab
  • Yaz
  • Ibuprofen
Arthralgia, Diarrhoea

This report suggests a potential Zyrtec Diarrhoea side effect(s) that can have serious consequences. A female patient from UNITED STATES (weight:NA) was diagnosed with the following health condition(s): hypersensitivity and used Zyrtec (dosage: NA) starting Jan 01, 2006. Soon after starting Zyrtec the patient began experiencing various side effects, including:
  • Arthralgia
  • Diarrhoea
Drugs used concurrently:
  • Flonase
  • Humira
  • Methotrexate
  • Humira
  • Methotrexate
  • Promethazine
Although Zyrtec demonstrated significant improvements in a number of clinically relevant cases, troublesome symptoms, such as Diarrhoea, may still occur.
Vomiting, Therapeutic Response Unexpected, Nausea, Decreased Appetite, Weight Decreased, Diarrhoea

An adverse event was reported by a consumer or non-health professional on Jun 09, 2010 by a Female taking Zyrtec (dosage: NA) . Location: UNITED STATES , 59 years of age, patient began experiencing various side effects, including: Patient felt the following Zyrtec side effects: vomiting, therapeutic response unexpected, nausea, decreased appetite, weight decreased, diarrhoea. Additional medications/treatments:
Multiple prescriptions taken:
  • Lovaza (1g Four Times Per Day)
  • Multivitamin
Abdominal Pain Upper, Diarrhoea, Gastrointestinal Disorder, Nausea, Product Quality Issue, Vomiting

This Diarrhoea problem was reported by a consumer or non-health professional from UNITED STATES. A 25-year-old patient (weight: NA) was diagnosed with the following medical condition(s): seasonal allergy,sinus congestion.On NS a consumer started treatment with Zyrtec (dosage: 10 Ml Daily Po Taken For A Couple Of Yea). The following drugs/medications were being taken at the same time: NA. When commencing Zyrtec, the patient experienced the following unwanted symptoms /side effects:
  • Abdominal Pain Upper
  • Diarrhoea
  • Gastrointestinal Disorder
  • Nausea
  • Product Quality Issue
  • Vomiting
Although all drugs are carefully tested before they are licensed for use, they carry potential side effect risks. Some side effects, such as Diarrhoea, may become evident only after a product is in use by the general population.
Diarrhoea, Vomiting

This is a Zyrtec side effect report of a 8-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 NS. Concurrently used drugs: NA. Soon after that, the consumer experienced the following of symptoms:
  • Diarrhoea
  • Vomiting
This opens a possibility that Zyrtec could cause Diarrhoea and that some female patients may be more susceptible.
Diarrhoea, Dizziness, Product Quality Issue, Vomiting

This Diarrhoea side effect was reported by a consumer or non-health professional from UNITED STATES on May 03, 2010. A female patient from UNITED STATES , child 3 years of age, weighting 34.00 lb, was diagnosed with and was treated with Zyrtec. Patient felt the following Zyrtec side effects: diarrhoea, dizziness, product quality issue, vomiting. Zyrtec dosage: 1 Teaspoon Once Daily. These side effects may potentially be related to Zyrtec.

DISCLAIMER: ALL DATA PROVIDED AS-IS, refer to terms of use for additional information.

Zyrtec Diarrhoea Causes and Reviews


What is diarrhea?

Diarrhea is loose, watery stools (bowel movements). You have diarrhea if you have loose stools three or more times in one day. Acute diarrhea is diarrhea that lasts a short time. It is a common problem. It usually lasts about one or two days, but it may last longer. Then it goes away on its own.

Diarrhea lasting more than a few days may be a sign of a more serious problem. Chronic diarrhea -- diarrhea that lasts at least four weeks -- can be a symptom of a chronic disease. Chronic diarrhea symptoms may be continual, or they may come and go.

Who gets diarrhea?

People of all ages can get diarrhea. On average, adults In the United States have acute diarrhea once a year. Young children have it an average of twice a year.

People who visit developing countries are at risk for traveler's diarrhea. It is caused by consuming contaminated food or water.

What causes diarrhea?

The most common causes of diarrhea include

  • Bacteria from contaminated food or water
  • Viruses such as the flu, norovirus, or rotavirus . Rotavirus is the most common cause of acute diarrhea in children.
  • Parasites, which are tiny organisms found in contaminated food or water
  • Medicines such as antibiotics, cancer drugs, and antacids that contain magnesium
  • Food intolerances and sensitivities, which are problems digesting certain ingredients or foods. An example is lactose intolerance.
  • Diseases that affect the stomach, small intestine, or colon, such as Crohn's disease
  • Problems with how the colon functions, such as irritable bowel syndrome

Some people also get diarrhea after stomach surgery, because sometimes the surgeries can cause food to move through your digestive system more quickly.

Sometimes no cause can be found. If your diarrhea goes away within a few days, finding the cause is usually not necessary.

What other symptoms might I have with diarrhea?

Other possible symptoms of diarrhea include

  • Cramps or pain in the abdomen
  • An urgent need to use the bathroom
  • Loss of bowel control

If a virus or bacteria is the cause of your diarrhea, you may also have a fever, chills, and bloody stools.

Diarrhea can cause dehydration, which means that your body does not have enough fluid to work properly. Dehydration can be serious, especially for children, older adults, and people with weakened immune systems.

When should I see a doctor for diarrhea?

Although it is usually not harmful, diarrhea can become dangerous or signal a more serious problem. Contact your health care provider if you have

  • Signs of dehydration
  • Diarrhea for more than 2 days, if you are an adult. For children, contact the provider if it lasts more than 24 hours.
  • Severe pain in your abdomen or rectum (for adults)
  • A fever of 102 degrees or higher
  • Stools containing blood or pus
  • Stools that are black and tarry

If children have diarrhea, parents or caregivers should not hesitate to call a health care provider. Diarrhea can be especially dangerous in newborns and infants.

How is the cause of diarrhea diagnosed?

To find the cause of diarrhea, your health care provider may

  • Do a physical exam
  • Ask about any medicines you are taking
  • Test your stool or blood to look for bacteria, parasites, or other signs of disease or infection
  • Ask you to stop eating certain foods to see whether your diarrhea goes away

If you have chronic diarrhea, your health care provider may perform other tests to look for signs of disease.

What are the treatments for diarrhea?

Diarrhea is treated by replacing lost fluids and electrolytes to prevent dehydration. Depending on the cause of the problem, you may need medicines to stop the diarrhea or treat an infection.

Adults with diarrhea should drink water, fruit juices, sports drinks, sodas without caffeine, and salty broths. As your symptoms improve, you can eat soft, bland food.

Children with diarrhea should be given oral rehydration solutions to replace lost fluids and electrolytes.

Can diarrhea be prevented?

Two types of diarrhea can be prevented - rotavirus diarrhea and traveler's diarrhea. There are vaccines for rotavirus. They are given to babies in two or three doses.

You can help prevent traveler's diarrhea by being careful about what you eat and drink when you are in developing countries:

  • Use only bottled or purified water for drinking, making ice cubes, and brushing your teeth
  • If you do use tap water, boil it or use iodine tablets
  • Make sure that the cooked food you eat is fully cooked and served hot
  • Avoid unwashed or unpeeled raw fruits and vegetables

NIH: National Institute of Diabetes and Digestive and Kidney Diseases


Zyrtec Diarrhoea 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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