Tab Adult & childn ≥12 yr 60 mg bid or 180 mg once daily. Decreased renal function 60 mg once daily. Childn 6-11 yr 30 mg bid. A dose of 30 mg once daily is recommended as the starting dose in patients w/ decreased renal function. Oral suspSeasonal allergic rhinitisChildn 2-11 yr 30 mg (5 mL) bid. Chronic idiopathic urticariaChildn 2-11 yr (>10.5 kg) 30 mg (5 mL) bid, 6 mth to <2 yr (≤10.5 kg) 15 mg (2.5 mL) bid. Ped patient w/ renal failure 2-11 yr (>10.5 kg) 30 mg once daily, 6 mth to <2 yr (≤10.5 kg) 15 mg once daily.