How many 500 mg tablets should be dispensed for a prescription that orders 2.5 g of neomycin sulfate?

To determine how many 500 mg tablets of neomycin sulfate should be dispensed for a prescription that orders 2.5 g, it's important to convert the grams into milligrams first. There are 1,000 milligrams in 1 gram, so 2.5 grams is equivalent to 2,500 milligrams.

Next, since each tablet contains 500 mg of neomycin sulfate, you divide the total amount required (2,500 mg) by the amount in each tablet (500 mg):

2,500 mg ÷ 500 mg/tablet = 5 tablets.

Thus, the prescription requires dispensing 5 tablets of 500 mg each to meet the prescribed dose of 2.5 g of neomycin sulfate.