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Hydroxypropyl Betadex INJECTION GRADE
[Product Name]: Hydroxypropyl Βetadex CAS 128446-35-5
[CAS NO]: 128446-35-5
[DMF]: DMF 034772[Period of validity]: 36 months
The Role of Hydroxypropyl Betadex in Letermovir Injection
Hydroxypropyl Betadex (HP-β-CD) plays a critical role in the formulation of Letermovir (Prevymis®) injection, enabling its effective and safe use in clinical settings. Its contributions are summarized as follows:
1. Enhancing Drug Solubility
Letermovir is poorly soluble in water, which poses challenges for injectable formulations. Hydroxypropyl Betadex acts as an inclusion complexing agent, encapsulating the hydrophobic Letermovir molecules within its hydrophobic cavity. This significantly improves the solubility of Letermovir in aqueous solutions, making the injectable form viable for clinical application.
2. Improving Drug Stability
Letermovir is sensitive to environmental factors such as light, heat, and humidity, which can lead to degradation. By forming inclusion complexes, Hydroxypropyl Betadex provides a protective shield for Letermovir molecules, enhancing their physical and chemical stability. This protection ensures a longer shelf life and better storage conditions for the injection.
3. Enhancing Tolerability
Hydroxypropyl Betadex is highly biocompatible and has minimal toxicity, making it ideal for use in formulations intended for immunocompromised patients. In Letermovir injections, it also reduces the potential for irritation at the injection site, improving patient comfort and treatment tolerability.
4. Increasing Bioavailability
By improving the solubility and stability of Letermovir, Hydroxypropyl Betadex indirectly enhances the drug’s bioavailability. This ensures efficient absorption and therapeutic action at lower doses, reducing the likelihood of side effects while maximizing efficacy.
5. Enabling Flexible Drug Delivery
The inclusion of Hydroxypropyl Betadex has facilitated the development of Letermovir in injectable form, complementing its oral formulation. This flexibility is particularly valuable for patients unable to take oral medications, such as those in critical care or post-surgery recovery, broadening the clinical application.
