Abstract
CONTEXT
The aim of this study is to control the dissolution rate of Venlafaxine HCl.
OBJECTIVE
To prepare sustained release tablets of Venlafaxine HCl.
MATERIAL AND METHODS
Different liquisolid formulations, liquid vehicles, drug concentration in the liquid medication and different ratios of carrier to coating material (R) were prepared. The prepared powders were characterized for possible interactions between drug and excipients using differential scanning calorimetry, X-ray, Fourier transform infrared analysis and scanning electron microscopy. Powder flowability was also evaluated, then they are compressed at different compression forces, and the compressed tablets were evaluated for their mechanical properties and dissolution profile.
RESULTS
Release results show that sustained release behavior can be obtained from liquisolid formulation containing Tween 80 as liquid vehicle.
DISCUSSION
Many factors affect the retardation effect of Venlafaxine HCl such as the type of liquid vehicle, drug concentration in the liquid medication and R. The mechanism of the in vitro release profiles was found to be mainly controlled by diffusion and polymer relaxation.
CONCLUSION
Sustained release formulation of Venlafaxine HCl was attained using the liquisolid technique.
TY - JOUR
T1 - Preparation of sustained-release dosage form of Venlafaxine HCl using liquisolid technique.
AU - Khanfar,M,
AU - Sheikh Salem,M,
AU - Kaddour,Faiza,
Y1 - 2013/01/24/
PY - 2013/1/26/entrez
PY - 2013/1/26/pubmed
PY - 2014/7/16/medline
SP - 103
EP - 15
JF - Pharmaceutical development and technology
JO - Pharm Dev Technol
VL - 19
IS - 1
N2 - CONTEXT: The aim of this study is to control the dissolution rate of Venlafaxine HCl. OBJECTIVE: To prepare sustained release tablets of Venlafaxine HCl. MATERIAL AND METHODS: Different liquisolid formulations, liquid vehicles, drug concentration in the liquid medication and different ratios of carrier to coating material (R) were prepared. The prepared powders were characterized for possible interactions between drug and excipients using differential scanning calorimetry, X-ray, Fourier transform infrared analysis and scanning electron microscopy. Powder flowability was also evaluated, then they are compressed at different compression forces, and the compressed tablets were evaluated for their mechanical properties and dissolution profile. RESULTS: Release results show that sustained release behavior can be obtained from liquisolid formulation containing Tween 80 as liquid vehicle. DISCUSSION: Many factors affect the retardation effect of Venlafaxine HCl such as the type of liquid vehicle, drug concentration in the liquid medication and R. The mechanism of the in vitro release profiles was found to be mainly controlled by diffusion and polymer relaxation. CONCLUSION: Sustained release formulation of Venlafaxine HCl was attained using the liquisolid technique.
SN - 1097-9867
UR - https://www.unboundmedicine.com/medline/citation/23347382/Preparation_of_sustained_release_dosage_form_of_Venlafaxine_HCl_using_liquisolid_technique_
L2 - https://www.tandfonline.com/doi/full/10.3109/10837450.2012.757785
DB - PRIME
DP - Unbound Medicine
ER -