Uses of Pharmaceutical Grade HPMC

1. Excipients in pharmaceutical preparations
HPMC is often used as an excipient in pharmaceutical preparations, mainly for the preparation of tablets, capsules, granules, etc. It can improve the fluidity and compressibility of drugs, and improve the solubility and bioavailability of drugs. Since HPMC has excellent adhesion, its use in tablets can effectively enhance the strength and stability of tablets.

2. Controlled release agent
HPMC is widely used in controlled release preparations. The rate of drug release can be adjusted by changing the molecular weight and viscosity of HPMC. The water-soluble properties of HPMC enable it to form gels in water, thereby controlling the release rate of drugs and achieving sustained drug release. This property is particularly important in the drug treatment of chronic diseases such as diabetes and hypertension.

3. Thickeners for solutions and suspensions
HPMC, as a thickener, can effectively increase the viscosity of solutions and suspensions and improve the stability and operability of drugs. In liquid preparations, the use of HPMC can improve the suspension of drugs, avoid precipitation, and ensure the uniformity of drugs.

4. External preparations
HPMC is also widely used in external preparations (such as creams, gels, patches, etc.). Due to its good adhesion and moisturizing properties, HPMC can enhance the spreadability and skin permeability of external preparations and improve the local efficacy of drugs. In addition, HPMC can provide good adhesion when preparing biological patches to ensure the stable adhesion of patches on the skin.

5. Ophthalmic preparations
In ophthalmic preparations, HPMC is used as a component of artificial tears and eye drops. Its high viscosity and moisturizing properties can effectively relieve dry eyes, provide lasting lubrication, and improve patient comfort.