Design, development and optimization of orodispersible tablets of rabeprazole sodium by direct compression method using different concentrations of synthetic super-disintegrants was written by Bhatti, Musharraf Abbas;Afzal, Muhammad;Bhatti, Muhammad Abbas;Tariq, Fatima. And the article was included in World Journal of Pharmacy and Pharmaceutical Sciences in 2020.Formula: C18H20N3NaO3S The following contents are mentioned in the article:
Improved bioavailability, rapid onset of action due to rapid systemic absorption and enhanced patient compliance in patients suffering from certain diseases such as peptic/duodenal ulcer, gastro-esophageal reflux disease, ulcers induced by NSAIDs or Zollinger-Ellison syndrome has increased the demand of orodispersible tablets. In the present study, orordispersible tablets of Rabeprazole sodium has been prepared by using direct compression method, in which different concentration of synthetic super-disintegrants such as croscarmellose sodium, crospovidone and sodium starch glycolate ranging from 2% to 7% has been used to formulate such dosage form with rapid disintegration and improved dissolution in order to increase bioavailability. In this study, nine formulations has been prepared and evaluated by different physicochem. parameters such as pre-formulation studies such as compatibility studies by using Fourier transform Infraredspectroscopy, Differential scanning calorimetry anal., thermo-gravimetric anal. were used to determine degree of crystallinity of the drug, pre-compression evaluation of powder blend such as Angle of repose, Bulk d., Tapped d., Carr’s index and Hausner’s ratio were carried out to determine the flow properties. After the formulation of tablets, post-compression studies were carried out for the evaluation of orodispersible tablets including the evaluation of hardness, thickness, diameter, friability, weight variation, content niformity and stability studies. It is concluded that all the formulations have a disintegration time within official limits, but formulation T6 was an optimized dosage form having average disintegration time of 1.6 s that releases upto 102.15% drug in 15min. This study involved multiple reactions and reactants, such as Sodium 2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide (cas: 117976-90-6Formula: C18H20N3NaO3S).
Sodium 2-(((4-(3-methoxypropoxy)-3-methylpyridin-2-yl)methyl)sulfinyl)benzo[d]imidazol-1-ide (cas: 117976-90-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Formula: C18H20N3NaO3S
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem