[Pharmaceutical technology of Grandaxin]

Area of Science:

• Pharmaceutical Chemistry
• Drug Formulation
• Process Engineering

Context:

• Investigating the physicochemical properties of tofizopam, the active ingredient in Grandaxin tablets.
• Addressing the challenge of tofizopam's low water solubility to enhance bioavailability.
• Evaluating the stability and degradation kinetics of tofizopam in acidic conditions across various pH levels.

Purpose:

• To characterize tofizopam's physical chemical properties, stability, and incompatibilities.
• To develop methods for increasing tofizopam's water solubility.
• To assess the impact of different granulation methods on Grandaxin tablet quality.

Summary:

• Tofizopam exhibits low water solubility, necessitating formulation strategies for improvement. Its behavior in acidic media and degradation rates at different pH were determined.
• Grandaxin tablets utilize established excipients, and their quality attributes (strength, friability, disintegration, dissolution) are unaffected by high shear or fluidized bed granulation.
• The study successfully scaled up the manufacturing technology and managed commercial production of tofizopam tablets.

Impact:

• Provides crucial data for the formulation and development of tofizopam-based medications.
• Establishes robust manufacturing processes for Grandaxin tablets, ensuring consistent quality and enabling successful commercialization.
• Contributes to the understanding of anxiolytic drug stability and dissolution, potentially informing future pharmaceutical development.