Lisinopril is a potent ACE (angiotensin-converting enzyme) inhibitor used to treat hypertension and
congestive heart failure. It exhibits 25% of low bioavailability. Hence, in the current study, the major objective was to
increase the gastric transient time of lisinopril and develop in situ gel formulation for better absorption and modulating
release behavior of lisinopril. Different formulations of lisinopril were prepared by using gelling polymers such as
Carboxymethyl cellulose (CMC), pectin, and calcium carbonate. Sodium citrate was used to prevent gelation outside
the gastric environment. The formulation was studied using Fourier Transform Infrared Spectroscopy (FTIR) and
Differential Scanning Calorimetry (DSC) to interpret the interaction between drugsand polymers. For optimization of
in situ gelling system 32 full factorial design was employed to study the effect of independent variables, the
concentration of CMC (X1) and concentration of sodium alginate (X2), on the dependent variables viscosity, and % drug
content. Formulation (F5) containing 1.25% of sodium alginate, and 0.75% of CMC showed good gelling ability. The
composition F5 was optimized on the basis of viscosity (5.03 Pa.s), drug content (94.06±1.0%), and cumulative drug
release (95±0.73%) at 12 h. Floating in situ gelling system improved bioavailability and gastric transit time of lisinopril.
A stability study indicated the absence of any noticeable change in the formulation. Thus, in situ gel formulation is a
promising approach for gastro-retentive sustained delivery of lisinopril. These results ensure that the developed system
is an alternative to conventional drug delivery systems and can enhance patient compliance.
In situ Gel Sodium Alginate Carboxymethyl cellulose Gastro-retentive drug delivery Lisinopril
Birincil Dil | İngilizce |
---|---|
Konular | Eczacılık ve İlaç Bilimleri (Diğer) |
Bölüm | Articles |
Yazarlar | |
Yayımlanma Tarihi | 27 Haziran 2025 |
Yayımlandığı Sayı | Yıl 2023 Cilt: 27 Sayı: 2 |