ABSTRACT
Chemotherapy induced nausea and vomiting (CINV) is an issue, which usually occurs in cancer patient. Despite high bioavailability of oral and intravenous administration, these have some drawbacks. The oral route causes hepatic first pass metabolism and intravenous route is invasive in nature. Hence, antiemetic drug by means of transdermal route is necessary to administer in such cases. The aim of the present investigation is to develop suitable Transdermal Therapeutic System (TTS) with an objective to enhance solubility and skin permeability properties of metoclopramide base. Preformulation study begins with an approach to enhance solubility of 40 metoclopramide base by solid dispersion technique. transdermal films were prepared with 41 the solid dispersion as well as with pure drug. Phase solubility study at various temperatures reveals binding constants (Ka, 95-350 M-1 for PVP K30; 56-81 M-1 for HPßCD). Spontaneity of solubilization was justified by AL type linear profiles. The films showed satisfactory diffusion (%), permeation rate and flux after 8 h study. The transdermal patches as prepared were analyzed under FTIR, DSC and SEM. Both solubility and permeability rate in this investigation have been enhanced. So, it can be affirmed that this route would effectively enhance bioavailability
Subject(s)
Solubility , Metoclopramide/antagonists & inhibitors , Patients/classification , Pharmaceutical Preparations/administration & dosage , Biological Availability , Spectroscopy, Fourier Transform Infrared , Diffusion/drug effects , Drug Therapy , Administration, Intravenous/instrumentation , Motion Pictures , Neoplasms/pathologyABSTRACT
La metoclopramida reduce la presión arterial en sujetos normotensos e hipertenso durante estímulos presores moderados a severos pretratados con Labetalol, igualmente tiene efecto hipotensor en hipertensos durante urgencia hipertensiva y en anillos de aorta de rata ha mostrado un efecto antidrenérgico alfa 1. En el presente trabajo se reporta la inhibición de la agregación plaquetaria inducida por ADP en presencia de metoclopramida, hallazgo este que puede ser de importancia clínico-terapéutica en pacientes con preeclampsia en donde coexiste hipertensión arterial y actividad proagregante plaquetaria aumentada así como también niveles plasmáticos de serotonina elevados