ซื้อaluminium hydroxide 1.2 g/15 mL + magnesium hydroxide 225 mg/15 mL + simeticone 50 mg/15 mL oral suspension, 240 mL bottle (51.99.99.99 -693400),calamine 8 g/100 g + diphenhydramine hydrochloride 1 g/100 g cutaneous suspension, 60 mL bottle (51.99.99.99 -823652) โดยวิธีตกลงราคา