Tablet / Capsule Quantity Calculator
Calculates tablets per dose and total tablets to dispense for a complete treatment course.
⚠️ Educational Calculation & Clinical Safety Safeguard: If Units/Dose is <0.5 or >4 tablets, verify strength selection to prevent administration errors. Educational calculations do not replace clinician assessment, patient-specific laboratory monitoring, or institutional prescribing protocols.
Interactive Calculator
Allowed physiological/compounding range: 0.01 to 5000 mg
Allowed physiological/compounding range: 0.01 to 5000 mg
Allowed physiological/compounding range: 1 to 12 doses/day
Allowed physiological/compounding range: 1 to 365 days
Calculated Output (tablets/dose & total tablets)
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Step-by-Step Mathematical Derivation & Explanation:
Validated Formula & Conversion Rules
Units/Dose = Desired Dose / Strength; Total Dispensed = Units/Dose × Doses/day × Duration (days)Worked Clinical Example
Prescribed 500 mg TID for 5 days using 250 mg capsules: 500/250 = 2 capsules/dose; Total = 2 × 3 × 5 = 30 capsules.
Rounding Rules, Clinical Interpretation, Assumptions & Known Limitations
- 1. Purpose: Calculates tablets per dose and total tablets to dispense for a complete treatment course.
- 2. Required Inputs & Validated Units: Prescribed Dose per Administration (mg, range 0.01–5000), Available Tablet/Capsule Strength (mg, range 0.01–5000), Doses per Day (doses/day, range 1–12), Course Duration (days, range 1–365)
- 3. Output Unit:
tablets/dose & total tablets - 4. Result Interpretation Notes: Determines exact tablet/capsule count per dose and rounds total course quantity upward to whole dispensing units.
- 5. Rounding Guidance: Do not split enteric-coated, modified-release (SR/XR), or unscored capsules.
- 6. Mathematical & Clinical Assumptions: Assumes tablets are scored if fractional (0.5) per-dose units are calculated.
- 7. Known Limitations & Contraindications to Formula Use: Enteric-coated, modified-release (SR/ER/CR), and capsule formulations must never be split or crushed.
- 8. Supporting Compendial & Clinical References: Indian Pharmacopoeia (IP 2022), National Formulary of India (NFI), British National Formulary (BNF), and NCBI Bookshelf Clinical Pharmacology Compendia.