title: Design and evaluation of fast dissolving tablets containing diclofenac sodium using fenugreek gum as a natural superdisintegrant.
abstract: OBJECTIVE
  To formulate diclofenac sodium as fast dissolving tablets (FDTs) using fenugreek gum as a natural superdisintegrant which also possess anti-inflammatory activity.
  
  
  METHODS
  An attempt was made to extract the fenugreek gum and evaluated it for various physicochemical characterizations. The swelling index and viscosity of fenugreek gum was 221% and 293.4 mpa.s respectively. FDTs of diclofenac sodium was formulated by direct compression technique using different concentrations (1%-6%, w/w) of fenugreek gum as a natural superdisintegrant and compared with renowned synthetic superdisintegrants like sodium starch glycolate and croscarmellose sodium. The anti-inflammatory activity of a formulation was evaluated with carrageenan induced experimental rats.
  
  
  RESULTS
  The formulated tablets were evaluated for various physical tests like weight variation, friability, hardness and results complied with the limits. The drug release from all the formulations ascertained first order kinetics. Among all the formulations F3 containing fenugreek gum with the concentration of 6% produced least disintegrating time 21 seconds resulting in higher drug release rate 93.74% at the end of 25 min. Hence, it was considered as optimized formulation. The present study revealed that the fenugreek gum as a natural superdisintegrant showed better disintegrating property than the most widely used synthetic superdisintegrants like sodium starch glycolate and croscarmellose sodium in the formulations of FDTs.
  
  
  CONCLUSIONS
  The results suggested that the fenugreek gum act as a good super disintegrating agent and it showed promising additive anti-inflammatory activity with diclofenac sodium.
authors.affiliation: Bapatla College of Pharmacy, Bapatla, Guntur District, Andhra Pradesh, 522101, India.
authors.forename: M Uday
authors.initials: MU
authors.lastname: Kumar
authors.affiliation: Bapatla College of Pharmacy, Bapatla, Guntur District, Andhra Pradesh, 522101, India.
authors.forename: M Kishore
authors.initials: MK
authors.lastname: Babu
keywords: Anti-inflammatory activity; Croscarmellose sodium; Diclofenac sodium; Direct compression; Fenugreek gum; Quick pain relief; Sodium starch glycolate; Superdisintegrant