Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability

Administered by an oral route, Furosemide (FUR), a diuretic used in several edematous states and hypertension, presents bioavailability problems, reported as a consequence of an erratic gastrointestinal absorption due to various existing polymorphic forms and low and pH-dependent solubility. A mucoa...

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Main Authors: Viviana De Caro, Alessia Ajovalasit, Flavia Maria Sutera, Denise Murgia, Maria Antonietta Sabatino, Clelia Dispenza
Format: Article
Language:English
Published: MDPI AG 2017-06-01
Series:Pharmaceutics
Subjects:
Online Access:http://www.mdpi.com/1999-4923/9/3/22
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author Viviana De Caro
Alessia Ajovalasit
Flavia Maria Sutera
Denise Murgia
Maria Antonietta Sabatino
Clelia Dispenza
author_facet Viviana De Caro
Alessia Ajovalasit
Flavia Maria Sutera
Denise Murgia
Maria Antonietta Sabatino
Clelia Dispenza
author_sort Viviana De Caro
collection DOAJ
description Administered by an oral route, Furosemide (FUR), a diuretic used in several edematous states and hypertension, presents bioavailability problems, reported as a consequence of an erratic gastrointestinal absorption due to various existing polymorphic forms and low and pH-dependent solubility. A mucoadhesive sublingual fast-dissolving FUR based film has been developed and evaluated in order to optimize the bioavailability of FUR by increasing solubility and guaranteeing a good dissolution reproducibility. The Differential Scanning Calorimetry (DSC) analyses confirmed that the film prepared using the solvent casting method entrapped FUR in the amorphous state. As a solid dispersion, FUR increases its solubility up to 28.36 mg/mL. Drug content, thickness, and weight uniformity of film were also evaluated. The measured Young’s Modulus, yield strength, and relative elongation of break percentage (EB%) allowed for the classification of the drug-loaded film as an elastomer. Mucoadhesive strength tests showed that the force to detach film from mucosa grew exponentially with increasing contact time up to 7667 N/m2. FUR was quickly discharged from the film following a trend well fitted with the Weibull kinetic model. When applied on sublingual mucosa, the new formulation produced a massive drug flux in the systemic compartment. Overall, the proposed sublingual film enhances drug solubility and absorption, allowing for the prediction of a rapid onset of action and reproducible bioavailability in its clinical application.
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spelling doaj.art-8d5cb2b07e794f5aa3c50887921ce2182022-12-22T02:58:46ZengMDPI AGPharmaceutics1999-49232017-06-01932210.3390/pharmaceutics9030022pharmaceutics9030022Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance BioavailabilityViviana De Caro0Alessia Ajovalasit1Flavia Maria Sutera2Denise Murgia3Maria Antonietta Sabatino4Clelia Dispenza5Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Palermo, PA 90123, ItalyDipartimento dell'Innovazione Industriale e Digitale, Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Palermo, PA 90128, ItalySiSaf Ltd, Innovation Centre, Northern Ireland Science Park, Queen’s Island, Belfast BT3 9DT, UKDipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università degli Studi di Palermo, Palermo, PA 90123, ItalyDipartimento dell'Innovazione Industriale e Digitale, Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Palermo, PA 90128, ItalyDipartimento dell'Innovazione Industriale e Digitale, Ingegneria Chimica, Gestionale, Informatica, Meccanica, Università degli Studi di Palermo, Palermo, PA 90128, ItalyAdministered by an oral route, Furosemide (FUR), a diuretic used in several edematous states and hypertension, presents bioavailability problems, reported as a consequence of an erratic gastrointestinal absorption due to various existing polymorphic forms and low and pH-dependent solubility. A mucoadhesive sublingual fast-dissolving FUR based film has been developed and evaluated in order to optimize the bioavailability of FUR by increasing solubility and guaranteeing a good dissolution reproducibility. The Differential Scanning Calorimetry (DSC) analyses confirmed that the film prepared using the solvent casting method entrapped FUR in the amorphous state. As a solid dispersion, FUR increases its solubility up to 28.36 mg/mL. Drug content, thickness, and weight uniformity of film were also evaluated. The measured Young’s Modulus, yield strength, and relative elongation of break percentage (EB%) allowed for the classification of the drug-loaded film as an elastomer. Mucoadhesive strength tests showed that the force to detach film from mucosa grew exponentially with increasing contact time up to 7667 N/m2. FUR was quickly discharged from the film following a trend well fitted with the Weibull kinetic model. When applied on sublingual mucosa, the new formulation produced a massive drug flux in the systemic compartment. Overall, the proposed sublingual film enhances drug solubility and absorption, allowing for the prediction of a rapid onset of action and reproducible bioavailability in its clinical application.http://www.mdpi.com/1999-4923/9/3/22mucoadhesive filmsublingual absorptionamorphous solid dispersionfurosemide bioavailabilitytransmucosal delivery
spellingShingle Viviana De Caro
Alessia Ajovalasit
Flavia Maria Sutera
Denise Murgia
Maria Antonietta Sabatino
Clelia Dispenza
Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
Pharmaceutics
mucoadhesive film
sublingual absorption
amorphous solid dispersion
furosemide bioavailability
transmucosal delivery
title Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
title_full Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
title_fullStr Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
title_full_unstemmed Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
title_short Development and Characterization of an Amorphous Solid Dispersion of Furosemide in the Form of a Sublingual Bioadhesive Film to Enhance Bioavailability
title_sort development and characterization of an amorphous solid dispersion of furosemide in the form of a sublingual bioadhesive film to enhance bioavailability
topic mucoadhesive film
sublingual absorption
amorphous solid dispersion
furosemide bioavailability
transmucosal delivery
url http://www.mdpi.com/1999-4923/9/3/22
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