About Zyrtec

2.5 rating based on 12 ratings
Rating: 2.7 Reviews: 12
About Zyrtec



Active substance



Zyrtec contains the active substance cetirizine. Also note the special effect of Zyrtec .

Cetirizine is used to treat skin allergic reactions. These include certain forms of eczema, hives, itching or skin reactions to insect bites.

Cetirizine can also be used in allergic conjunctivitis of the eyes. These are often associated with redness, itching or increased tearing.

In the respiratory tract, the drug is used to treat allergic rhinitis (hay fever) and allergic bronchial asthma.

Young women and African-Americans have facial and neck swelling (angioedema) following the ingestion of certain active ingredients, the consumption of various foods, insect bites or physical stimuli (eg heat, cold and light). Cetirizine can also be used in these cases.

The active substance is administered as a tablet, drops or juice.

For the following application areas of Cetirizine , in-depth information is available:

  • allergy
  • eczema
  • asthma
  • itching

Please also read the information on the drug groups H1-antihistamines, antiallergic drugs, to which the active ingredient cetirizine belongs.

Areas of application according to the manufacturer’s instructions

  • Hay fever with symptoms such as sneezing, runny nose, nose itching, nasal obstruction, redness or itching of the eyes, and tears
  • chronic allergic rhinitis
  • in asthma-like conditions of allergic origin as a supportive measure to suppress such complaints
  • chronic hives with symptoms such as itching, wheals and redness of the skin
  • itching in chronic hives
    and in eczema with discomfort such as
    Redness of the skin


The dosage and duration of use depend on the type and severity of the disease. If in doubt, ask your doctor.

The tablets are swallowed whole with some liquid.

Dosage recommendation for adolescents from the age of twelve and adults:
– one tablet in the evening. If necessary, a dose increase to twice daily (morning and evening) one tablet is possible.

Dosage recommendation for children from two to twelve years:
– under 30 kilograms of body weight: half a tablet in the evening.
– About 30 kilograms of body weight: twice a day (morning and evening) half a tablet.

In case of impaired renal function, the dose must be adjusted accordingly.

Other ingredients

The following non-active ingredients are included in the medicine:

  • Hypromellose
  • Lactose
  • magnesium
  • microcrystalline cellulose
  • titanium dioxide (E 171)
  • Macrogol 400
  • silica

Potential Zyrtec side effects may include:


Zyrtec used to treat the following diseases:

  1. Rogelio I. Hawkins says:
    3.0 rating

    Zyrtec for Allergy

    I have no symptoms of tiredness. What teases is a constant dry mouth. There is no drinking here either. The lips are completely dry. On rainy days I do not use the remedy. Nevertheless, I am looking for alternatives, because tablets are the solution.

    Side effects: Mouth dryness
  2. Karl D. Hirsh says:
    3.0 rating

    Zyrtec for Hay fever

    Since my son suffers from hay fever, the doctor has prescribed him Zyrtec. My son is 7 years old and weighs 35 kg. As long as I gave him one half of the tablet in the evening and one half in the morning, I did not notice any side effects. When the rainy weather set in, I decided to discontinue medication. Since he was allergic to the next morning, I gave him a whole pill. 2 – 3 hours later he complained of dizziness, flickering in front of his eyes and sweating.

    Side effects: Dizziness
  3. Kimberly T. Gardner says:
    2.5 rating

    Zyrtec for Allergy

    Normally, I (25) had no problems with Zyrtec. But as I probably did not eat enough and drank too little to the tablet, I got hallucinations while going to sleep. I saw people standing in the room, heard voices, and woke up in the night sweaty with panic, because I have bad (really bad!) Dreamed ….. 2 days later I was still totally dizzy – but that was lost again.

    Side effects: Dizziness
  4. Shirley L. Tripp says:
    3.0 rating

    Dizziness, palpitations, high blood pressure, dry mouth and lips, insomnia, headache, stomach and intestinal problems, tremors, night sweats

    Side effects: Mouth dryness; Dizziness; Headache
  5. Tammy D. Hebert says:
    3.0 rating

    Zyrtec for Hay fever

    After only one tablet (10 mg) I was like a coma for a whole day: Completely knocked off, tired, headache, dry mouth, slightly elevated temperature. Obviously, I can not handle it at all.

  6. Elizabeth A. Sherman says:
    2.5 rating

    Zyrtec for Hay fever

    The drug made me dull and tired. The complaints persisted and were rather intensified.

    Side effects: Headache; Fatigue
  7. Charles M. Rivera says:
    2.0 rating

    Zyrtec for Allergy

    I have been taking Zyrtec for 19 years. One tablet in the evening before sleeping. But only in the spring. No side effects occurred.

    Side effects: No side effects
  8. Joe S. Dart says:
    1.0 rating

    Zyrtec for Allergy

    1 Zyrtec in the evening before going to sleep will not have any problems in the spring

    Side effects: No side effects
  9. Frances H. Bullock says:
    4.0 rating

    Zyrtec for Allergy

    I have been taking Zyrtek for more than 10 years and have not experienced side effects so far. If I leave out the tablet, but I am awake unusually.

    Side effects: No side effects
  10. Amy D. Morgan says:
    2.5 rating

    Zyrtec for Hay fever

    Ebastel: got it from the doctor, since I’ve been having hay fever for 15 years now and has now transferred to the bronchi (asthma) and he said that my Lorano was too weak. Hyposensitization and homeopathy were not completely problem-solving. Have not only two huge polyps (maxillary sinuses are too) meanwhile but also noticed in high phases, which I additionally need spray for the nose (Nasonex). He said Ebastel was stronger then I need nothing else. After two weeks discontinued, because constantly nervous, restless, become aggressive, heart racing without reason at the desk suddenly get. Again switched to Lorano. I have now from February to the end of April and a month in July again (early flowering and partly sweet grasses) for many years in a row. Have never noticed any side effects although otherwise I constantly allergic to Medis and can hardly take anything, take it in the evening so over an hour before going to bed, so it is not in the stomach – should no medications, can permanently inflammation. Even if Lorano is weak, in extreme phases times 2 tablets = 20 mg are better than almost all other tablets. Zytrex: sleep attacks in the middle of the day! I can not take it. Sudden nod.

    Side effects: Fatigue
  11. Stephanie G. Anderson says:
    3.5 rating

    Zyrtec for Allergy

    Although the drug is not supposed to make you tired, this medicine works better on me than any sleeping pill. If anything, I can only take this remedy before going to bed in the evening, but in the morning it is very difficult to wake up. I’m completely dizzy for a long time. I only take it when the allergenic burden is very strong for me.

    Side effects: Fatigue
  12. Donnie J. Candelaria says:
    2.5 rating

    At first I was a bit tired. However, the drug helps a lot with my allergies to house dust, pollen but with pet hair it helps me very little. But when in contact with animal hairs, the allergy lymphomas will fade faster when taken by Zyrtec. I have been taking Zyrtec for over 15 years.

    Side effects: Fatigue