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PharmCalc
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PharmCalc

Built for the Way Pharmacy Actually Works.

Calculator

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Standard mode stays clean. Scientific mode adds √, trig, logs, powers, and π.

Recent Calculations

Fill Date / RTS

Fridge Shipment Check

Checks New Year’s Day, Martin Luther King Jr. Day, Memorial Day, Independence Day, Labor Day, Thanksgiving, and Christmas Day.

Injection Day Supply

Recent Calculations

Examples: GLP-1s, Ajovy, Repatha, biologics, and other maintenance injectables. For interval-based day supply math only. Verify package and directions.

Day Supply

Calculate standard tablet/capsule, liquid, quantity needed, titration, taper, and patterned day supply.

Recent Calculations

Adherence & Utilization

Investigate refill timing, days elapsed, estimated remaining medication, and average daily use.
Count days between dates or add/subtract days from a start date. Useful for RTS checks, fill timing, adherence review, shipment timing, and quick workflow date math.

Recent Calculations

Insulin / Pen Day Supply

Recent Calculations

Eye/Ear Drop Day Supply

Recent Calculations

Inhaler / Spray Day Supply

Recent Calculations

Topical Cream / Ointment Day Supply

Use daily amount for traditional topical estimates or weekly amount for products directed by week, such as some estradiol directions.
Topicals can be audit-sensitive.

Reference estimates:
FTU ≈ 0.5 g • Pea-sized ≈ 0.25 g

Examples:
• 30 g testosterone gel
• 42.5 g estradiol cream
• 60 g triamcinolone ointment
• 100 g ketoconazole cream

Enzyme Day Supply

Recent Calculations

For pancreatic enzyme capsule day supply. Verify SIG and dispense quantity before billing.

Warfarin Weekly Dose

Recent Calculations

Arithmetic support only. Does not recommend dose changes or interpret INR.