What is the difference between dry suspension and granules?
In the pharmaceutical field, dry suspensions and granules are two common dosage forms. They have significant differences in appearance, usage, solubility, etc. This article will compare the differences between these two dosage forms in detail, and attach structured data for readers to understand more intuitively.
1. Definition and basic characteristics

Although dry suspensions and granules are both solid dosage forms, their preparation processes and methods of use are different.
| Comparative item | dry suspension | particles |
|---|---|---|
| definition | It is made by mixing drug powder and excipients. It needs to be dispersed in water or other liquid before taking. | Fine particles made of drugs and excipients, which can be taken directly or mixed |
| Appearance | Fine powder, poor fluidity | Granular, good fluidity |
| solubility | Need to add water to disperse to form a suspension | Some are soluble in water, some are suspended |
2. Comparison of preparation processes
The preparation processes of dry suspensions and granules are quite different, mainly reflected in the selection of excipients and production processes.
| Comparative item | dry suspension | particles |
|---|---|---|
| Excipients | Commonly used suspending agents (such as CMC-Na) and wetting agents | Commonly used binders (such as starch), disintegrants |
| Production process | Mixing, sifting and packaging | Granulation, drying, whole granulation, packaging |
| Stability | Easy to absorb moisture and needs to be sealed and stored | Relatively stable, but still needs to be protected from moisture |
3. Usage methods and applicable groups
The usage methods of dry suspension and granules are different, and the applicable groups are also different.
| Comparative item | dry suspension | particles |
|---|---|---|
| How to use | Disperse with water before taking | Can be swallowed directly or mixed |
| Applicable people | Children and patients with dysphagia | Available for both adults and children |
| Dosage adjustment | Water volume can be adjusted as needed | The dose is fixed and difficult to adjust |
4. Analysis of advantages and disadvantages
Dry suspensions and granules each have their own advantages and disadvantages, as follows:
| Comparative item | dry suspension | particles |
|---|---|---|
| Advantages | Easy to adjust dosage for children | Easy to take and good stability |
| Disadvantages | Needs temporary preparation, easy to settle | Fixed dose, little flexibility |
5. Hot Topics and Hot Content
Recent discussions about dry suspensions and granules have focused on convenience and safety for use in children. The following are hot topics in the past 10 days:
| topic | heat index | Main discussion points |
|---|---|---|
| Dosage form selection for children | 85 | Dry suspension vs granules, which one is better for children? |
| Stability issues of dry suspensions | 72 | How to avoid clumping and settling of dry suspensions |
| Portability of granules | 68 | Granules for travel convenience |
6. Summary
Dry suspensions and granules each have their own unique advantages and applicable scenarios in the pharmaceutical field. Dry suspension is suitable for children and patients with swallowing difficulties who need flexible dosage adjustment, while granules are more suitable for adults and those who need portable medication. Selection of an appropriate dosage form should be based on the specific needs of the patient and the characteristics of the drug.
We hope that the comparative analysis in this article can help readers better understand the differences between dry suspensions and granules and make more reasonable choices in practical applications.
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