FORMULATION AND CHARACTERIZATION OF THEOPHYLLINE MICROSPHERE
About Authors:
Sofiya Verma*, Dipak V, Ashok A, Neha C, Jagruti R, Ashutosh. M
Shri ram institute of pharmacy
Jabalpur M.P
*sofiyavermamph@gmail.com
ABSTRACT:
The purpose of this research was to prepare and characterize theophylline microsphere of guar gum polymer for the application of nocturnal asthma. The microsphere were prepared by using emulsification method using sodium borate as a cross linking agent and coating was done by solvent evaporation method with the pH sensitive eudragit S-100 polymers. The prepared microsphere were white, free flowing and spherical in shape. The drug-loaded microsphere showed entrapment efficiency and drug release was extended upto 6 to 8 h. The infrared spectra, differential scanning calorimetry thermographs and XRD spectra all showed the stable character of both the drugs in the drug-loaded microspheres and revealed the absence of drug-polymer interactions. Scanning electron microscopy study revealed that the microspheres were spherical and porous in nature. The prepared theopylline microsphere has the potential for delaying the release of drug.