Cellulose ethers are the most commonly used polymers in hydrophilic matrix controlled-release systems. The molecular weight of the cellulose ethers dictates the drug-release properties of the final product.

By carefully adjusting the chain length of the polymer, formulators can create their desired final product. The solubility-level of the drug that needs to be released determines the most suitable Headcel grade.

The following Headcel products are suitable for pharmaceutical applications:

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