Cetirizine Fattening? For What It Is, Dosage and Side Effects

Cetirizine in the form of coated tablets, also called Cetirizine Dihydrochloride, is an oral, adult and pediatric drug from 12 years of age.

The medicine is found in packs containing 12 10 mg film-coated tablets, according to information from its package leaflet provided by the National Agency of Sanitary Surveillance (Anvisa).

What is Cetirizine used for?

Cetirizine dihydrochloride is indicated for the amelioration of nasal and ocular symptoms of seasonal (temporary) and perennial allergic rhinitis (long-lasting) and relief of urticaria symptoms - an allergic reaction characterized by red and swollen lesions that appear on the skin, according to the Brazilian Society of Dermatology (SBD).

Its marketing is only allowed medically prescription presentation.

Cetirizine gets fat?

For those who care about losing weight or maintaining fitness without gaining extra pounds and received the prescription of the medicine, it is important to know that Cetirizine is fattening in some cases, although it is well rare.

Cetirizine Dihydrochloride itself shows weight gain as one of the possible adverse drug reactions. However, as this side effect is classified as rare reactions (≥1 / 1, 00 e & l; Users), we can not hit the hammer and determine that Cetirizine cases. This seems to be an unlikely side effect for the vast majority of people, but possible.

Another adverse reaction associated with weight gain that is presented by the product insert is increased appetite. However, the frequency by which this effect can be observed is not known.

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That is, when taking the medication, there are some chances that the patient will experience weight gain, but, it is not possible to determine that Ceritizina fattens for all users.

To protect yourself from this, you can try to take better care of your diet by eating healthy, controlled, balanced and nutritious diet without committing excesses, and doing regular physical exercises that help increase expenditure caloric.

And if you experience weight gain when using Cetirizine, talk to the doctor responsible for your treatment to know if the problem was actually caused by the remedy and check with him how to proceed to circumvent the situation.

Other side effects of Cetirizine

According to the package leaflet provided by Anvisa, the remedy can have the following side effects:

  • Increased risk of urinary retention;
  • Somnolence;
  • Fatigue;
  • Dizziness;
  • Headache (headache);
  • Paradoxical stimulation of the central nervous system;
  • Difficulties of urination;
  • Disturbance of eye accommodation;
  • Dry mouth;
  • Hepatic insufficiency;
  • Abdominal pain;
  • Nausea;
  • Pharyngitis;
  • Paresthesia - may bring about abnormal or unpleasant sensations such as tingling, pressure, burning, cold numbness or itching of the skin;
  • Itching - itching or itching;
  • Rash;
  • Malaise;
  • Asthenia - loss or decrease in physical strength, generalized weakness;
  • Agitation;
  • Diarrhea;
  • Tachycardia;
  • Convulsions;
  • Urticaria;
  • Edema (swelling);
  • Hypersensitivity;
  • Abnormal liver function;
  • Hepatitis;
  • Mental confusion;
  • Depression;
  • Insomnia;
  • Hallucination;
  • Thrombocytopenia - low platelet count in the blood;
  • Dysgeusia - distortion or decreased taste;
  • Dyskinesia - disturbance of motor activity or involuntary repetitive movements;
  • Dystonia - involuntary movements that can occur in any part of the body, according to the My Life website;
  • Syncope;
  • Tremor;
  • Blurred vision;
  • Occultorus - lateral rotation of the eyes;
  • Dysuria - difficulty urinating that may be accompanied by pain;
  • Enuresis - involuntary emission of urine, bed wetting;
  • Angioedema - swelling in the deeper layers of the skin, according to the site Consultations Remedies;
  • Anaphylactic shock;
  • Nerve tics;
  • Amnesia;
  • Memory alteration;
  • Suicidal thoughts;
  • Vertigo.

Contraindications of Cetirizine

The package leaflet further states that the medicinal product should not be used by persons who are hypersensitive to any of the ingredients of the formula, hydroxyzine or any type of piperazine derivative.

It also can not be ingested by people suffering from severe renal impairment with creatinine clearance (an examination that evaluates kidney function) less than 10 ml / min, and by patients with rare hereditary conditions of galactose intolerance, Lapp lactase deficiency, or malabsorption of glucose-galactose.

The package leaflet further recommends that the medicine should be used with caution by women who are pregnant or in the process of being breastfeeding, so the patient who falls into one of these situations should inform the of this. Another group of individuals whose use of the drug requires caution is that of epileptic patients who are at risk for seizures.

In addition, since skin allergy tests can be changed, it is necessary to discontinue use of Cetirizine three days prior to this type of examination. The package leaflet also advises caution regarding the simultaneous use of the medicine and alcoholic beverages.

Concerning the effect with regard to the ability to operate machinery, drive vehicles and perform potentially hazardous activities, the indication is that the maximum dosage is not exceeded and the manner in which the patient reacts to the drug is taken into account in order to know the safety in exercising such tasks.

As the leaflet explained, sensitive users may suffer from decreased alertness when using Cetirizine concomitantly with alcoholic beverages and depressant medicines of the nervous system central.

Another important point is to tell the doctor about any other type of medicine that is using it, so that it defines if there are risks of interaction between the medicine in question and the Cetirizine.


The medicine is for oral use and the tablet should be swallowed with a glass of liquid and can not be broken open or chewed. The indicated dosage is one 10 mg tablet per day, however, this should be determined by the physician as well as the duration of the treatment.

The dosage for patients with renal impairment may be different depending on the renal function of the individual and their creatinine clearance. Pediatric patients suffering from the condition should also be individually dosed. In both cases, the adjustment should be made by the doctor who prescribed the remedy.


Do you know anyone who has taken and claims that Cetirizine is fattening? Are you afraid to use this medicine because of this side effect? Comment below!

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