Details

Autor(en) / Beteiligte

• Obeidat, Wasfy M
• Al-Natour, Mohammad Ahmad

Titel

Assessment of Once Daily Controlled-release Ibuprofen Matrix Tablets Prepared using Eudragit ® E100/Carbopol ® 971P NF Polymers and their Salt Combinations

Ist Teil von

• Current drug delivery, 2022, Vol.19 (1), p.74-85

Ort / Verlag

United Arab Emirates

Erscheinungsjahr

2022

Quelle

MEDLINE

Beschreibungen/Notizen

• Hydrophilic polymers that swell or dissolve in aqueous media can have the potential to prepare controlled/sustained dosage forms for weakly acidic and poorly soluble drugs. The main objective of this study is to utilize Eudragit E100 (EE) and Carbopol 971P NF (Cp) polymers and their salt forms for the preparation of a once-daily controlled-release matrix tablet for model drug, Ibuprofen (IB). Combinations of the polymers in their base forms (EE)/(Cp) or in their salt forms (EEHCl/ CpNa) were compressed with (IB) into single layer matrix tablets, or otherwise into bilayer tablets. Dissolution profiles were constructed using three different consecutive stages (pH 1.2, 4.8 and 6.8). It was found that the incorporation of (EEHCl) modified the release rates of (IB) from (Cp) based matrix tablets. However, a major enhancement of (IB) release rates occurred when the polymers were combined in their salt forms in a 1:1 ratio by weight. In addition, a bilayer tablet was prepared wherein a relatively rapidly disintegrating layer composed of polymers salts (EEHCl and CpNa), and a second layer containing only (Cp) polymer in its base form in a 1:2 weight ratio possessed excellent release properties and mechanical strength. It was concluded that the prepared bilayer tablet could be promising for controlling the release rates of (IB) in an extended manner to allow once-daily administration with an improved pH-independent release behavior.