PART 3 Flashcards
This is composed of dry aggregates of powder particles.
Granules
What are the two methods of granulation?
- Wet Granulation Method
- Dry Granulation Method
What sieve size is required for granules used in tablet formulation?
No. 12-20
What is the usual sieve size range for granules?
No. 4-12
True or False
Granules are more stable to the effects of atmospheric humidity, more likely to cake or harden upon standing, and more easily wetted.
False, less likely to cake or harden
Method of granulation for drugs that are moisture sensitive or heat liable
Dry Granulation Method
The water of crystallization from ___ serves as a binding agent in dry granulation method.
Citric acids
During dry granulation method, heating causes the release of ___ from the citric acid.
Water of crystallization
What are the binding agents used in wet granulation method?
- Water
- Ethanol
- Isopropyl alcohol
Granules or coarse to very coarse powders containing
a soluble medicinal agent in a dry mixture.
Effervescent granulated salts
3 components of effervescent granulated salts
- Sodium bicarbonate
- Citric acid
- Tartaric acid
Ratio requirement for citric acid and tartaric acid in effervescent granulated salts.
1 citric: 2 tartaric
___ acid alone results to granules readily losing its firmness and crumbling.
___ acid alone results in a sticky mixture difficult to granulate
- Tartaric
- Citric