ซื้อ1.dibasic sodium phosphate 900 mg/5 mL + monobasic sodium phosphate 2.4 g/5 mL oral solution, 90 mL bottle 2.simeticone 40 mg/0.6 mL oral drops, suspension, 15 mL bottle 3.multivitamins syrup, 60 mL bottle โดยวิธีเฉพาะเจาะจง