Carbomers are synthetic high-molecular-weight polymers of acrylic acid that are crosslinked with either allyl sucrose or allyl pentaerythritol
Hydrophilic matrix former
|Typical use level|
3 - 10%
|Benefits / Claims|
In the case of soluble drugs, the predominant mechanism is diffusion through the gel layer. With low solubility drugs, the predominant mechanism is polymer relaxation or erosion.