Pharmaceutical Calculations:
Homework 2: Due Monday 9/25 at 11:59pm EDT
Instructions: This homework must be completed independently and in your own handwriting (okay to
complete on your tablet with your stylus) and submitted to the appropriate drop box by the appropriate
deadline. Late work will not be accepted. Show all work, round your final answer to 2 decimal places,
unless otherwise specified, and circle or underline it.
Name:
1. A 15-ml package of nasal spray delivers 20 sprays per milliliter of solution, with each spray
containing 1.5 mg of drug.
a. How many total sprays will the package deliver?
b. How many milligrams of drug are contained in the 15-ml package of the spray?
2. Aripiprazole (ABILIFY) injection is available in single-dose vials containing 9.75 mg of aripiprazole in
each 1.3 mL of injection. Calculate the volume of injection (in milliliters) that would provide a dose
of 5.25 mg of aripiprazole.
3. Add 0.0025 kg, 1750 mg, 2.25 g and 825,000 µg, and express the answer in grams.
4. In a clinical study, the drug methotrexate produced a blood level of 6.6 µg of methotrexate in each
milliliter of blood (6.6 µg/mL). Express the methotrexate blood level in terms of mg/dL.
