Hands-on calculation practice for Course 6: Pharmacy Calculations. Work through each lab, check your answer, and retry until you are confident.
Dosage Calculation Lab
Calculate how many tablets the patient needs per day. Formula: (dose × frequency) ÷ tablet strength.
Sig: Take 500 mg by mouth 2 times daily. Available: 250 mg tablets.
IV Drip Rate Lab
Calculate gtt/min. Formula: (volume ÷ hours × drop factor) ÷ 60.
Days Supply Lab
Calculate how many days a prescription will last. Formula: quantity dispensed ÷ (dose × frequency).
Dispense: 60 tablets · Sig: 1 tablet(s) 2 times daily
Need inhalers, eye drops, GLP-1, or insulin? Use the public days supply calculator or the pharmacy calculations quiz.