Sejinjeong (Cetirizine Hydrochloride)

Adult dosage

Adults and children aged 6 years and older should take 10mg of cetirizine hydrochloride orally once daily before bedtime. Patients sensitive to side effects may split the dose into 5mg in the morning and evening. The dosage may be adjusted as appropriate according to age and symptoms. For patients with kidney impairment, the dosing interval and dosage should be adjusted based on creatinine clearance.

Children's dosage

Children aged 6 years and older should take 10mg orally once daily before bedtime, the same as adults. For children with kidney impairment, the dose should be adjusted individually considering renal clearance and body weight.

This medication should not be taken by individuals with allergies to certain ingredients, severely impaired kidney function, or children under 6 years of age. It contains lactose, so those with lactose intolerance or related genetic disorders should avoid it. During the use of this medication, certain drugs such as theophylline or ritonavir should not be taken concurrently, and excessive alcohol consumption should also be avoided. People with poor kidney or liver function, elderly individuals, or those at risk of seizures should consult a physician or pharmacist before taking this medication. Caution is needed for women who are pregnant or nursing, as well as those with conditions affecting urine output. Overdose may lead to confusion, drowsiness, dizziness, rapid heartbeat, and other adverse effects, so if unusual symptoms occur, discontinue use and consult a healthcare professional immediately. Drowsiness, headache, digestive disorders, and skin rashes are among various side effects that may occur, so careful observation is essential. It is advisable to discontinue this medication before allergy tests, and caution is warranted while driving or operating machinery. Food intake may slow the absorption rate of the drug but does not affect the amount absorbed. Lastly, this medication should be stored out of reach of children and kept in its original container for safety.

Serious side effects

Hives, severe swelling (edema), angioedema, severe rash accompanied by high fever, blisters, skin peeling, pain in mouth/eye mucosa, difficulty breathing, asthma attack, respiratory issues accompanied by cough and fever, yellowing of skin or eyes (jaundice), profound lethargy, sudden and severe headache, lightning headache, seizures, disorientation, visual disturbances, paralysis, significantly reduced urine output, severe body swelling, and

Mild side effects

• Drowsiness
• headache
• lethargy
• numbness
• weakness
• anxiety
• sensory abnormalities
• drowsiness
• fatigue
• dizziness

Drug interactions

Do not take this medication together with theophylline or ritonavir.

Food interactions

Do not take this medication with excessive alcohol.

This medicine should be stored in a tightly closed container to protect it from air or moisture, and kept at room temperature between 1 and 30 degrees Celsius. Storing it this way will help maintain its effectiveness for a longer period.

Appearance

White rectangular film-coated tablet

Package unit

10 tablets/PPT