- Size of capsules refers to the standardized dimensions and volume of empty capsules used to encapsulate medicines or supplements.
- Capsule sizes range from 000 (largest) to 5 (smallest), based on fill volume.
- Choosing the right size of capsules ensures accurate dosing, ease of ingestion, and formulation efficiency.
Hard gelatin capsules are available in various sizes, ranging from 000 (largest) to 5 (smallest). The choice of size depends on:
- The dose of the drug.
- Bulk density of the formulation.
- Patient acceptability.
| Size | Capacity (mg) | Volume (mL) |
| 000 | ~950 – 1350 | 1.37 |
| 00 | ~650 – 1000 | 0.95 |
| 0 | ~390 – 910 | 0.68 |
| 1 | ~300 – 600 | 0.50 |
| 2 | ~200 – 450 | 0.37 |
| 3 | ~150 – 300 | 0.30 |
| 4 | ~120 – 180 | 0.21 |
| 5 | ~60 – 130 | 0.13 |
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