1 Buccal absorption through golden hamster cheek pouch in vitro and in vivo of 17 ß - estradiol from hydrogels containing three types of absorption enhancers
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Buccal absorption of ergotamine tartrate using the bioadhesive tablet system in guinea-pigs.
The buccal administration of ergotamine tartrate (ET) combined with polyvinyl alcohol (PVA) gel brought about higher plasma concentration of ET compared with that of oral administration of capsules in guinea-pigs. T(max) of ET in plasma of buccal administration was significantly smaller than that of oral administration. For the buccal dosage form of ET, the bioadhesive tablet system (BTS) was n...
متن کاملSpontaneous differentiated squamous cell carcinoma of cheek pouch in a Syrian hamster
A 2-year-old male hamster was presented because of left facial swelling and salivation. Necropsy wasperformed and affected cheek pouch with tissue samples of regional and internal organs were submitted forhistopathological study. In histopathological examination it was found that the tumor consisted of cords andislands of tumoric epithelial cells which were diffused in the dermis. Vacoulation o...
متن کاملOptical coherence tomography of malignancy in hamster cheek pouches.
Optical coherence tomography (OCT)/optical Doppler tomography (ODT) provides real-time in vivo high-resolution (10-microm) imaging of tissues and real-time spatially resolved blood flow in microvasculature. Hamster cheek pouches with induced dysplasia and malignancies were imaged with OCT/ODT to assess the potential for application to airway malignancy. In 22 Golden Syrian hamsters, 0.5% 9,10-d...
متن کاملDesign and evaluation of buccal films of isoxsuprine hydrochloride
An attempt was made to formulate Buccal patches of Isoxsuprine hydrochloride, a potent and long acting vasodilator and uterine suppressant , by using Hydroxyl propyl methyl cellulose(HPMC), Polyvinyl pyrolidone K-30 (PVP K-30) and Hydroxyl ethyl cellulose (HEC). Twelve batches of buccal patches were prepared by solvent casting technique in which the best formulation was found out. The polymers ...
متن کاملAn Investigation into the Effect of Various Penetration Enhancers on Percutaneous Absorption of Piroxicam
Achieving a desirable percutaneous absorption of drug molecule is a major concern in formulating dermatological products. The use of penetration enhancers could provide a successful mean for this purpose. The aim of this study was to evaluate the effect of incorporating a few common penetration enhancers (in different concentrations) into a 0.5% w/w piroxicam (model drug) gel formulation, on th...
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