TabAdult & childn >12 yr 1 tab every 8 hr. Forte syrAdult & childn >12 yr 10 mL every 12 hr. Childn 7-12 yr 5 mL every 8-12 hr, 3-6 yr 2.5 mL every 8 hr, 1-2 yr 2.5 mL every 12 hr. Duration for initial treatment of chronic conditions: Up to 14 days; then dosage may be reduced to ½. SyrAdult & childn >12 yr 10 mL every 8 hr. Childn 7-12 yr 5 mL every 8-12 hr, 3-6 yr 2.5 mL every 8 hr, 1-2 yr 2.5 mL every 12 hr.