Tab Adult & childn >7 yr 1 tab daily or ½ tab bid, 
2-6 yr ½ tab daily or ¼ tab bid. 
Oral soln Adult & childn ≥7 yr 10 mL once daily or 5 mL bid, 
2-6 yr 5 mL once daily or 2.5 mL bid. 
Oral drops Childn 2-5 yr 5 mg (2 mL) once daily or 2.5 mg (1 mL) bid every 12 hr, 
12 mth-<2 yr 2.5 mg (1 mL) once daily or bid every 12 hr. 
Infant 6-<12 mth 2.5 mg (1 mL) once daily.