Optimized Rapid Disintegrating Tablets produced through Central Composite Design

Abstract

The work is aimed at producing fast disintegrating diclofenac potassium tablets to relieve pain and tenderness by applying a quality-by-design approach. Diclofenac potassium (DP) is of BCS class II and has issues of minimal oral bioavailability. This can be overcome by complexing DP with β-cyclodextrin (β-CD) and sodium starch glycolate (SSG). The attempt was to optimize DP tablets by applying central composite design (CCD). Nine different DP tablet formulations were created and assessed for physicochemical constraints, disintegration time and drug dissolution at the end of 30 min. The separate and mutual consequences of β-CD and SSG on the disintegration time of DP tablets are highly significant (P<0.01). The DP tablets made with β-CD in 150 mg disintegrated rapidly within 39±2 sec, and gave very rapid drug dissolution (96.35±2.36%) at the end of 30 min. These DP tablets (F-8) contain β-CD (150 mg) and SSG at 32.07 mg. The intermittent levels of β-CD and higher levels of SSG gave good dissolution of DP tablets. The polynomial equation linking the response, i.e. disintegration time in sec (Y1) and the levels of β-CD (A) and SSG (B) based on the pragmatic results, is Y1=45-3.14277A- 2.46599B-1.25AB+1.75A2-0.5B2. In contrast, the DP release at the end of 30 min was expressed as Y2 = 88.57 + 4.09333A + 3.27837B + 1.2525AB - 2A2 + 0.8875B2. The study concludes that SSG decreases the disintegration time with its concentration and β-CD concentration ingresses the drug release from the formulation.

Formulation and Evaluation of Fast-Dissolving Tablets of Losartan Potassium Using Co-Processed Excipients and Statistical Optimisation Using Central Composite Design

“…Tablets were prepared using 25mg Losartan potassium ,15mg Aspartame, 0.5mg Magnesium Stearate, 0.5 mg Talc constant and mannitol quantity sufficient along with quantities of Disintequik ODT (X1) and SSG(X2) by keeping tablet weight 100mg given in table 4. [2,39] Angle of repose:-Angle of repose is defined as the maximum angle possible between the surface of pile of powder and horizontal plane. The angle of repose was calculated by substituting the values of the base radius 'R' and pile height 'H' in the following equation.…”