Pellet materials for pharmaceutial purpose are:
- Microcrystalline Cellulose
- Tartaric acid (functional)
- Dibasic Calcium Phosphate
- Carnauba wax
Most pellet materials are seen to be neutral. They do not show mentionable influence on the drug dissolution characteristics. An exception are tartaric acid pellets (TAP). TAPs assist dissolution of weakly basic drugs by serving a localized acidic environment. A good summary is given in an overview article.