Dose Formula: Solids
- O = Dose ordered
- A = Dose available
1. Give 70 milligrams (mg) of Lasix® (furosemide) PO now. Pharmacy has sent a package of 20-milligram Lasix® tablets. How many tablets will you give? Using the formula:
- dose ordered = 70 mg
- dose available = 20 mg tablets
The answer is 3.5. You would give 3 and ½ tablets from the package pharmacy sent.
2. Here's another example. Give 12.5 milligrams of Capoten® (captopril) PO. Pharmacy has sent a 50 milligram Capoten® tablet. How much of the tablet will be given? Using the formula:
- dose ordered = 12.5 mg
- dose available = 50 mg tablet
The answer is 0.25. You would give ¼ of the tablet.