The dosage strength of a solution with a strength of 50% is

A. 5 g of medication per 100 mL solution: This describes a 5% solution, not a 50% one. A 5% solution means there are 5 grams of drug in 100 mL of solution. B. 1 g of medication per 50 mL solution: This reflects a 2% concentration (1 g in 50 mL = 2 g in 100 mL = 2%). It does not match 50% strength. C. 1:1,000: A 1:1,000 ratio means 1 gram of medication in 1,000 mL of solution (or 0.1%), which is far more diluted than a 50% solution. D. 50 g of medication per 100 mL solution: A 50% solution means there are 50 grams of solute per 100 mL of solution. This is the correct expression of a 50% concentration by weight/volume (w/v).