On many occasions we suddenly suffer from allergic reactions whose causes we do not know, and it is that our immune system overreacts towards some substance or component to which we are sensitive.

In this sense, the drug industry has created a series of drugs to counteract the symptoms of these allergies and among them is cetirizine.

Therefore, in this article, we provide you with information about this medicine and how to use it to improve our health.

What is cetirizine?

Cetirizine is a medication that is prescribed to treat patients who may suffer from seasonal and perennial allergic reactions, such as hay fever (allergy caused by contact with pollen, dust, and other airborne substances), as well as other elements that can cause chronic urticaria. (1)

This medication belongs to the group of antihistamines and is prescribed by a doctor or pharmacist. Its active ingredient is cetirizine dihydrochloride and it is commonly sold in 10 mg tablets. It also contains lactose monohydrate.

To highlight: The recommended dose for adults and adolescents over 12 years of age is 10 mg once a day with a prescription. In children under 6 years, 2.5 mg twice a day and children between 6 and 12 years, 5 mg twice a day (this medicine should be kept out of the reach of children).

What is cetirizine used for?

According to the previous reference, cetirizine is an antihistamine medication and its use is recommended in the following cases:

1. Nasal and eye allergies

Nasal and ocular allergies, such as seasonal allergic rhinitis, occur due to direct or indirect contact of the mucous membranes of the eyes and nose , with allergenic substances that produce an exaggerated reaction of the immune system and it generates antibodies that release histamine and other substances. , causing swelling and redness.

You should know: Treatment with cetirizine inhibits the production of these antibodies, mitigating nasal and ocular symptoms. (two)

2. Chronic hives

This is a skin condition due to contact with an allergen, producing swelling and redness in the contact area due to the exaggerated release of histamine, as a defensive response from the immune system.

To highlight: Studies support the use of cetirizine in cases of patients with allergic-type urticaria and pruritus . (3)

cetirizine side effects

The use of this drug can cause the appearance of the following adverse effects :

  • Drowsiness.
  • dry mouth
  • headache.
  • Dizziness.
  • Gastrointestinal discomfort.
  • Rhinitis and respiratory disorders

Important: Consultation with your doctor is recommended if you notice any of these reactions while using cetirizine.

Contraindications of cetirizine

Taking this drug is contraindicated in the following cases:

  • Patients with severe renal insufficiency.
  • If you are taking drugs that depress the nervous system.
  • Patients at risk of seizures.
  • Women in pregnancy or lactation.
  • If you are allergic to any of the ingredients of cetirizine such as lactose.

Important: The consumption of alcoholic beverages should be restricted while taking this medicine.

Key Findings

  • Cetirizine is a second generation antihistamine drug .
  • You should take necessary precautions while consuming cetirizine.
  • The presentation of cetirizine varies according to the target population from 2.5 mg to 10 mg as the maximum daily dose.
  • Medical supervision is important during the administration of this drug.

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