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Pharmaceutical Equivalents

Pharmaceutical Equivalents

As defined by regulatory standards, pharmaceutical equivalents require generic drug products to have identical dosage forms and chemically identical active pharmaceutical ingredients (APIs). They must adhere to compendial or applicable standards for potency, content uniformity, disintegration times, and dissolution rates. In the case of modified-release dosage forms, variations in drug content are permissible as long as the delivered amount remains consistent with the innovator drug product.

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy: Atomization Methods

Atomic Absorption Spectroscopy (AAS) atomizes samples through flame atomization or electrothermal atomization. Flame atomization typically involves a nebulizer and spray chamber assembly to combine the sample with a fuel–oxidant mixture, creating a fine aerosol mist that enters a burner. Typically, the fuel and oxidant are combined in an approximately stoichiometric ratio. However, for atoms that are easily oxidized, a fuel-rich mixture may be more advantageous. Only about 5% of the...

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence

Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...

Pharmaceutical Alternatives: Excipients and Impurities-Related Therapeutic Nonequivalence

Pharmaceutical Alternatives: Excipients and Impurities-Related Therapeutic Nonequivalence

Pharmaceutical products contain more than just the active drug; they also contain various excipients such as binders, solubilizers, stabilizers, preservatives, and other elements. In some cases, impurities or contaminants might be present. Traditionally, quality control in pharmaceuticals has primarily focused on the analysis of the active drug, often overlooking the impact of these additional components. The recent issue with heparin contamination by over-sulfated chondroitin sulfate, a...

Factors Influencing Drug Absorption: Pharmaceutical Parameters

Factors Influencing Drug Absorption: Pharmaceutical Parameters

Solid dosage forms such as tablets and capsules undergo rigorous manufacturing processes to ensure stability and effectiveness. Their dissolution and absorption properties are influenced significantly by the choice of excipients (inactive ingredients that serve various roles in the formulation), and the methodology applied during production. The manufacturing parameters, such as compression force and granulation techniques, significantly affect dissolution rates. Elevated compression forces...

Pharmaceutical Alternatives: Polymorphic Form-Related and Particle Size-Related Therapeutic Nonequivalence

Pharmaceutical Alternatives: Polymorphic Form-Related and Particle Size-Related Therapeutic Nonequivalence

Changes in polymorphic forms can significantly influence the bioavailability of poorly soluble drugs. Although the FDA defines pharmaceutical equivalence based on having the same active ingredient, dosage form, and route of administration, it does not automatically disqualify products with different polymorphic forms. This means two products with different polymorphs can still be deemed pharmaceutically equivalent. However, polymorphic differences can affect properties like wettability,...

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Chemometric Methods for Spectroscopy-Based Pharmaceutical Analysis.

Alessandra Biancolillo¹, Federico Marini¹

¹Department of Chemistry, University of Rome La Sapienza, Rome, Italy.

Frontiers in Chemistry

|December 7, 2018

Summary

This summary is machine-generated.

This study explores chemometric methods for analyzing pharmaceutical spectroscopy data. It covers data exploration and building predictive models for quantitative and qualitative analysis.

Keywords:

chemometrics and statistics classification component analysis (PCA)partial least squares (PLS)partial least squares discriminant analysis (PLS-DA)pharmaceutical quality control soft independent modeling of class analogies (SIMCA)spectroscopy

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Area of Science:

Pharmaceutical analysis
Chemometrics
Spectroscopy

Background:

Spectroscopy is a rapid, cost-effective, and non-destructive technique widely employed in pharmaceutical analysis.
Spectroscopic data is information-rich, necessitating advanced analytical approaches.
Chemometrics offers powerful tools for extracting meaningful information from complex spectroscopic profiles.

Purpose of the Study:

To provide an overview of chemometric approaches for spectroscopy-based pharmaceutical analysis.
To discuss unsupervised data exploration techniques.
To cover the development of predictive models for quantitative and qualitative pharmaceutical analysis.

Main Methods:

Overview of chemometric techniques.
Application of multivariate mathematics and statistics.
Exploration of unsupervised data analysis.
Development of calibration and classification models.

Main Results:

Chemometrics effectively analyzes complex spectroscopic data from pharmaceutical products and processes.
Unsupervised methods aid in initial data exploration and pattern recognition.
Predictive models enable quantitative (calibration) and qualitative (classification) assessments.

Conclusions:

Chemometric approaches are essential for maximizing the utility of spectroscopy in pharmaceutical analysis.
The integration of chemometrics enhances the capabilities of spectroscopic techniques for quality control and process monitoring.
This overview serves as a guide to applying chemometrics in spectroscopy-based pharmaceutical research.