orabase and Nausea

The main aim present work was to optimize fast dissolving tablet (FDT) formulation using response surface approach. The variables studied were sodium bicarbonate (X1), citric acid (X2), and superdisintegrant, Ac-Di-Sol (X3). The main aspect of present work was to develop FDT of Domperidone which possesses fast disintegration and high mechanical strength. It was found that the response was affected by all the three factors studied. The statistical models were successfully used to prepare FDT of Domperidone with fast disintegration (31.08 seconds) and adequate hardness (4.1 kg/cm(2)). Pharmacokinetic studies in rats showed statistically insignificant difference (p>0.05) between Domperidone fast dissolving tablet (DFDT) and market product. This concluded that optimized FDT is bioequivalent with the marketed formulation. The values of Tmax were found to be 0.5 h and 0.75 h for DFDT and reference product, respectively. Conditioned place aversion study was performed on Swiss Albino mice and the study showed the better anti emetic potency of optimized FDT in nauseated condition over market product (p<0.05). Thus, the present investigation conclusively demonstrates the potential role in terms of rapid disintegration and high mechanical strength.

Topics: Animals; Antiemetics; Carboxymethylcellulose Sodium; Chemistry, Pharmaceutical; Citric Acid; Domperidone; Drug Design; Excipients; Hardness; Male; Mice; Models, Statistical; Nausea; Rats; Rats, Wistar; Sodium Bicarbonate; Solubility; Tablets; Therapeutic Equivalency

Twenty-five patients with metastatic carcinoma were entered into a Phase I clinical trial using poly(I,C)-LC at either 1 mg/m2 or 4 mg/m2 intravenous, twice weekly, for 4 weeks. None of the 15 patients entered at the 1 mg/m2 dose had an objective response; three had progressive disease. Similarly, no objective responses were observed among the 10 patients treated at the 4 mg/m2 dose of poly(I,C)-LC; one patient was removed from the study due to progressive disease. Toxicities observed at the 1 mg/m2 dose were mild hypotension, fever, nausea, vomiting, fatigue, and headache. The first patient treated at the 4 mg/m2 dose was taken off of the study for severe hypotension. In the subsequent nine patients treated at this dose, a pretreatment with one dose at 1 mg/m2 was given, and no further problems with hypotension were encountered. The other toxicities at 4 mg/m2 were similar to those seen at 1 mg/m2.

Topics: Carboxymethylcellulose Sodium; Drug Evaluation; Fever; Humans; Hypotension; Interferons; Kinetics; Methylcellulose; Nausea; Neoplasms; Poly I-C; Polylysine