scholarly journals Study of the dissolution kinetics of drugs in solid dosage form with lisinopril and atorvastatin and intestinal permeability to assess their equivalence in vitro

Pharmacia ◽  
2022 ◽  
Vol 69 (1) ◽  
pp. 61-67
Author(s):  
Nataliia Shulyak ◽  
Kateryna Liushuk ◽  
Oksana Semeniuk ◽  
Nadiya Yarema ◽  
Tetyana Uglyar ◽  
...  

Atorvastatin and lisinopril are a successful combination for the treatment of patients with chronic heart failure and hypertension. Study of the dissolution kinetics of drugs in solid dosage form with lisinopril and atorvastatin and intestinal permeability to assess their equivalence in vitro were described. In medium with hydrochloric acid pH 1.2, in the medium of acetate buffer solution with a pH of 4.5 and in the medium phosphate buffer solution with a pH of 6.8 for 15 min more than 85% of the active substance passes into solution, hence the dissolution profiles these drugs in these environments are similar, and the drugs in them are “very quickly soluble”. Among the in vitro models that make it possible to assess the degree of absorption of API, the most widely used culture of adenocarcinoma cells of the colon – Caco-2. The development of the analytical methodology and its validation is the final stage of both the dissolution study and the Caco-2 test, as well as the biowaver procedure. It plays the most important role in the reliability of the results for all the above procedures and tests. To study permeability, method LC-MS/MS was developed. According to the obtained results, atorvastatin and lisinopril showed low permeability. The values ​​of recovery of transport of test and control substances through the monolayer of cells of the Caco-2 line indicate that the results of the experiment can be considered reliable. The equivalence of the drugs “Lisinopril”, tablets of 10 mg and “Atorvastatin”, tablets of 10 mg, belongs to class III BCS proven by in vitro studies.

2019 ◽  
Vol 14 (6) ◽  
pp. 951-957
Author(s):  
G. V. Ramenskaya ◽  
I. E. Shokhin ◽  
N. I. Gaponova ◽  
V. R. Abdrakhmanov

Aim. Investigation of comparative dissolution kinetics of generic medicinal products containing moxonidine versus reference drug. Material and methods. Objects of the research were film-coated tablets containing moxonidine (INN) in a dose 0.4 mg: a reference drug Physiotens® and 4 generic drugs. In vitro dissolution test of moxonidine from the study drugs was performed using comparative dissolution kinetics test (CDKT). The CDKT was performed in the media with the following pH: 1.2 (1:9 mixture of 0.1 M hydrochloric acid and water), 4.5 (acetate buffer solution, prepared as per State Pharmacopoeia, XIII), and 6.8 (phosphate buffer solution, prepared as per State Pharmacopoeia, XIII). The sampling for dissolved moxonidine was performed 5, 10, 15, 20, and 30 min after the test was started. An high performance liquid chromatography method with ultraviolet detection at 220 nm was used to assay. Results. Within 15 min more that 85% of moxonidine dissolved from the reference drug and all study drugs at pH 1.2; dissolution profiles were similar without calculation of similarity factor f2. Similarly, at pH 4.5 dissolution profiles of study drugs #2 and #3 were similar to that of the reference drug, and the similarity factor f2 was not calculated. However, in case of study drugs #1 and #4 significant differences were observed at a single time point (15 min), which suggests that their dissolution profiles are non-similar to that of the reference drug. Similarity factors f2 were calculated 17.52 and 35.30, respectively (less than 50). At pH 6.8 similarity factors f2 for all study generic drugs were also less than 50 (23.8, 49.8, 38.6, and 35.9), so their dissolution curves were non-similar to that of reference drug. Conclusion. In our study we observed difference in release in vitro of medicinal products containing moxonidines: none of the study drugs was fully similar to the reference drug in all media. The differences observed at pH 6.8 were noteworthy, where the samples had or faster kinetics (study drugs #2 and #3), or slower dissolution kinetics (test drugs #1 and #4). Observed differences in moxonidine release rate may impact absorption of active pharmaceutical ingredient into the blood following drug administration.


2021 ◽  
Vol 11 ◽  
Author(s):  
Hardik Rana ◽  
Rushikesh Chaudhari ◽  
Vaishali Thakkar ◽  
Tejal Gandhi

Background: The better control of the drug release with immediate effect is the major concern to achieve better therapeutic action and patient compliance. The failure of the solid dispersion complex during storage as well as in-vivo is another concern for the oral solid dosage form. Objective: The prime objective of the present study was to optimize the biphasic minitablet incorporating quality by design approach using the combination of waxy erodible and water-impermeable excipients. Exploration of Soluplus as a precipitation inhibitor and Dexolve as a solubility enhancer in oral solid dosage form was the secondary objective. Methods: The drug-Excipient compatibility study was assessed by FTIR. Clozapine was chosen as a model drug that has poor aqueous solubility. The complex was formulated using B-cyclodextrin or HP B-CD or Dexolve by kneading method. The screening of solubility enhancers and their amount were performed based on phase solubility study. The precipitation inhibitor was screened as per the parachute effect study. Immediate release minitablets were formulated using a direct compression method using different disintegrating agents. The IR minitablets were evaluated for different evaluation parameters. The sustained release minitablets was formulated by hot-melt granulation technique incorporating the Precirol ATO 5 as a waxy excipient and ethyl cellulose as water impermeable excipient. The SR minitablet was optimized using a central composite design. The amount of Precirol ATO 5 and ethyl cellulose were chosen as independent variables and % drug release at 1, 6, and 10 h was selected as responses. The designed batches were evaluated for different pre and post compressional parameters. The IR and SR minitablets were filled in a capsule as per dose requirement and evaluated for in-vitro drug release. The in-vivo plasma concentration was predicted using the Back calculation of the Wagner – Nelson approach. Results: Drug – Excipient study revealed that no significant interaction was observed. Dexolve was screened as a solubility enhancer for the improvement of the solubility of clozapine. The Soluplus was chosen as a precipitation inhibitor from the parachute effect study. The immediate-release tablet was formulated using Prosolv EASYtab SP yield less disintegration time with better flowability. The sustained release mini-tablet was formulated using Precirol ATO 5 and ethyl cellulose. Two-dimensional and three-dimensional plots were revealed the significant effect of the amount of Precirol ATO 5 and ethyl cellulose. The overlay plot locates the optimized region. The in-vitro drug release study revealed the desired drug release of the final combined formulation. The in-vivo plasma concentration-time confirms the drug release up to 12h. Conclusion: The biphasic mini-tablets were formulated successfully for better control of drug release leads to high patient compliance. The use of soluplus as a precipitation inhibitor is explored in the oral solid dosage form for a poorly aqueous drug. Prosolv EASYtab SP was incorporated in the formulation as super disintegrant. The amount of Precirol ATO 5 and ethyl cellulose had a significant effect on drug release in sustained-release minitablet. The approach can be useful in the industry.


2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Silvina G. Castro ◽  
Alicia Dib ◽  
Gonzalo Suarez ◽  
Daniel Allemandi ◽  
Carlos Lanusse ◽  
...  

The main objectives of this study were (a) to evaluate thein vitroperformance of the rapid disintegration tablets as a way to improve the solid dispersions and (b) to study thein vivopharmacokinetics of the albendazole modified formulation in dogs. Rapid disintegration of tablets seems to be a key factor for efficiency of solid dispersions with regard to improvement of the albendazole bioavailability. Thein vivoassays performed on dogs showed a marked increase in drug plasma exposure when albendazole was given in solid dispersions incorporated into rapid disintegration tablets compared with conventional solid dosage form.


2008 ◽  
Vol 34 (11) ◽  
pp. 1209-1218 ◽  
Author(s):  
Shradhanjali Basa ◽  
Thilekkumar Muniyappan ◽  
Pradeep Karatgi ◽  
Raghavendra Prabhu ◽  
Ravi Pillai

Planta Medica ◽  
2007 ◽  
Vol 73 (09) ◽  
Author(s):  
I Urakova ◽  
O Pozharitskaya ◽  
A Shikov ◽  
V Makarov ◽  
V Tikhonov

2019 ◽  
Vol 18 (1) ◽  
pp. 95-100
Author(s):  
Е. V. Ignаtieva ◽  
Z. S. Shprakh ◽  
I. V. Yartseva ◽  
E. V. Sanarova

Background . Test “Dissolution” is one of the main methods for quality evaluation of solid dosage drug forms, which enables characterization of the drug both in technological and biopharmacological aspects. The test may be also used for comparative studies of drugs bioavailability in vitro. Objective . Development of the “Dissolution” test for the drug Secoisolariciresinol, capsules 100 mg.Materials and methods . The study used: Secoisolariciresinol, capsules 100 mg; hydrochloric acid (c. p.); Twin-80 (Polysorbate LAUROPAN T/80, Italy); purified water (рН 6.5); 0.1 М and 0.2 М solutions of hydrochloric acid; phosphate buffer solution (рН 6.8). Equipment and devices: dissolution tester ERWEKA, series 700, type – paddle mixer (ERWEKA, Germany); recording spectrophotometer Cary-100 (Varian, USA); рН-meter HANNA рН 211 (Hanna Instruments, Germany); analytical balances Sartorius 2405 (Sartorius AG, Germany).Results . Methodology for performing the “Dissolution” test for the drug Secoisolariciresinol, capsules 100 mg was developed according to Russian State Pharmacopoeia (XIV) requirements for solid dosage drug forms.Conclusions . Optimal conditions were chosen for performing the study “Dissolution” for capsules containing 100 mg of secoisolariciresinol. Analytical methodology was designed for quantitative assessment of secoisolariciresinol release from capsules, which enables accurate control of pharmaceutical substance content in different dissolution media. Methodology for the “Dissolution” test of the drug Secoisolariciresinol, capsules 100 mg was developed on the base of the obtained experimental data.


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