Drug Index


Mechanism :

Loratadine is a long-acting tricyclic antihistamine with selective peripheral histamine H1-receptor antagonistic activity.

Indication :

  • Urticaria
  • Allergic rhinitis

Contraindications :

Loratadine is contraindicated in patients who are hypersensitive to this medication or to any of its ingredients.

Dosing :

2-6 years:
5 mg, orally every day.
>6 years:
10 mg orally, every day.

Adverse Effect :

Nausea, headache, somnolence, drowsiness, nervousness, fatigue, dry mouth, hyperkinesia, conjunctivitis, dysphonia, malaise, abdominal pain, tachycardia, syncope, alopecia, anaphylaxis, abnormal hepatic function, supraventricular tachycardia.

Interaction :

Cimetidine, Erythromycin, Ketoconazole, Quinidine, Fluconazole, Fluoxetine: Could elevate plasma loratadine levels, which could theoretically result in adverse effects.

Renal Dose :

Dose in Renal Impairment GFR (mL/min)
20-50Dose as in normal renal function
10-20Dose as in normal renal function
<10Dose as in normal renal function

Dose in Patients undergoing Renal Replacement Therapies
CAPDNot dialysed. Dose as in normal renal function
HDNot dialysed. Dose as in normal renal function
HDF/High fluxUnknown dialysability. Dose as in normal renal function
CAV/VVHDUnlikely to be dialysed. Dose as in normal renal function

Hepatic Dose :

Children 6 years and older: Reduce initial dose to 10 mg PO every alternate day.
Children 2 to 5 years: Reduce initial dose to 5 mg PO every alternate day.
01/18/2022 09:41:08 Loratadine
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