Allerizine Tablet (Cetirizine Hydrochloride)

Adult dose

Oral tablets: Administer 10mg of cetirizine hydrochloride once daily before bedtime. Patients sensitive to side effects may take 5mg in divided doses, morning and evening. Adjust dosage according to age and symptoms; patients with renal impairment should adjust dosing intervals and amounts based on renal function.

Child dose

Oral tablets: Children aged 6 years and older should take 10mg of cetirizine hydrochloride once daily before bedtime. For children with renal impairment, dosage should be adjusted individually based on the child's renal clearance and weight.

This medication should not be taken by individuals who have a known allergy to any of its components or have experienced hypersensitivity reactions. It should not be used in patients with severely impaired kidney function or children under 6 years of age. Additionally, those with hereditary lactose intolerance should avoid this medication due to its lactose content. It is important not to take this medication with certain drugs. For example, concurrent use with theophylline or ritonavir may alter the efficacy or concentration of the medication in the body. Excessive alcohol consumption should be avoided when taking this medication. Patients with kidney or liver problems, the elderly, those with epilepsy, and pregnant or nursing women should consult a healthcare professional before use. Particularly in the elderly, decreased bodily functions may lead to increased drug concentration, requiring dose adjustments. This medication may exacerbate conditions with poor urine flow, so those with related diseases should exercise caution. If any unusual symptoms occur during use, discontinue the medication immediately and consult a doctor or pharmacist. In cases of overdose, central nervous system symptoms or gastrointestinal symptoms may occur; specific treatment is necessary as no specific antidote is available. It is advisable to discontinue use a few days prior to allergy testing, and caution is advised while driving or operating machinery. Taking this medication with food may slow the absorption rate but does not decrease the overall absorption.

Serious side effects

Urticaria, severe swelling (edema), severe allergic reactions, severe rashes, blisters, skin peeling, pain in oral/ocular mucosa, severe skin adverse reactions, difficulty breathing, asthma attacks, respiratory distress associated with coughing and fever, respiratory problems, yellowing of the skin or eyes (jaundice), severe lethargy, liver dysfunction (jaundice), sudden and severe headaches, thunderclap headache, seizures, confusion, visual disturbances, paralysis, severe.

Mild side effects

• Confusion
• diarrhea
• dizziness
• fatigue
• headache
• lethargy
• dilated pupils
• pruritus
• anxiety
• sedation

Drug interactions

Do not take this medication with theophylline or ritonavir.

Food interactions

Avoid taking this medication with excessive alcohol.

Store this medication in a tightly sealed container to prevent exposure to air and moisture. It is also advisable to keep it at room temperature between 1°C and 30°C.

Appearance

White, oblong, film-coated tablet

Package unit

30 tablets/bottle, 300 tablets/bottle