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1. Common sizes of Gelatin Empty Capsule
The size of Gelatin Empty Capsule is usually indicated by a numerical number, from small to large, it is 000#, 00#, 0#, 1#, 2#, 3#, 4#, etc., and some products even provide larger sizes such as 5#. Here are some approximate ranges of common sizes (which may vary by manufacturer and product):
| Size number | diameter（mm） | volume（ml） |
| 000# | ≈9.55 | ≈1.37 |
| 00# | ≈8.18 | ≈0.95 |
| 0# | ≈7.34 | ≈0.68 |
| 1# | ≈6.63 | ≈0.50 |
| 2# | ≈6.07 | ≈0.37 |
| 3# | ≈5.56 | ≈0.30 |
| 4# | ≈5.05 | ≈0.21 |
2. How to choose the specifications that suit you
Choose according to the amount of drug filling:
The amount of filling a medication or nutraceutical is a key factor in determining the size of the capsule. If the drug filling volume is large, a capsule size with a larger volume should be chosen; Otherwise, choose a size with a smaller volume.
Consider the patient's ability to swallow:
Capsule size can also affect the patient's swallowing sensation. For patients with dysphagia, it is recommended to choose a smaller size capsule.
Refer to the manufacturer's recommendations:
Manufacturers often provide recommended filling ranges for different sizes of capsules. When choosing, you can refer to the manufacturer's recommendations to ensure the filling volume and stability of the capsule.
Consider productivity and cost:
Larger capsules, while able to hold more drugs, can also lead to increased productivity and costs. Therefore, when choosing, it is necessary to consider the production efficiency and cost factors comprehensively.
Comply with relevant regulations and standards:
When choosing a capsule size, it is also necessary to follow the relevant regulations and standards to ensure that the selected size meets the requirements for the production of pharmaceutical or nutraceuticals.
