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Hydroxypropyl Methylcellulose-A Key Excipient in Pharmaceutical Drug Delivery Systems
Robert-Alexandru Vlad1, Andrada Pintea2, Cezara Pintea1,2
1Department of Pharmaceutical Technology and Cosmetology, Faculty of Pharmacy, George Emil Palade University of Medicine, Pharmacy, Science, and Technology of Targu Mures, 540142 Targu Mures, Romania.
Hydroxypropyl methylcellulose (HPMC) is a versatile pharmaceutical excipient with adaptable physicochemical properties. Its varied viscosity and polymerization degree are key to its use in drug delivery systems, including controlled-release and mucoadhesive applications.
Area of Science:
- Pharmaceutical Science
- Materials Science
- Polymer Chemistry
Background:
- Hydroxypropyl methylcellulose (HPMC) is a cellulose derivative widely utilized as an excipient.
- Its properties, including viscosity and polymerization degree, are crucial for its applications.
- HPMC finds use in various pharmaceutical and nutraceutical formulations.
Purpose of the Study:
- To review the physicochemical characteristics of HPMC.
- To explore the diverse applications of HPMC in drug delivery.
- To highlight HPMC's significance in modern pharmaceutical formulations.
Main Methods:
- Literature review of HPMC properties and applications.
- Analysis of HPMC's role in different dosage forms (e.g., tablets, films).
- Discussion of analytical techniques for evaluating HPMC compatibility (DSC, FT-IR, XRPD, SEM).
Main Results:
- HPMC's viscosity and polymerization degree significantly influence its functionality.
- It acts as a binder, film-former, and release modifier in solid dosage forms.
- Compatibility studies are essential to avoid formulation issues.
Conclusions:
- HPMC is a key excipient in advanced drug delivery systems.
- Its properties can be tailored for specific pharmaceutical applications.
- Understanding HPMC's characteristics is vital for effective formulation development.
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