
Originally Posted by
numbere
Stane is slightly soluble in aqueous solutions between a PH of 1-4. In this PH range concentrations of up to 0.50 mg/mL at room temp are obtainable. Solubility is independent of pH above this range. As stated above stane is freely soluble in methanol, ethanol, and isopropyl alcohol. Lactose, povidone, starch, magnesium stearate, hypromellose, macrogol and titanium dioxide are fillers used in pharmaceutical grade stane tablets. These fillers may or may not be soluble in water/alcohol.
I agree that you can use a dropper to measure liquid suspensions. In order to do so accurately you need to first calibrate the dropper.
Precision and accuracy of dose from dropper to dropper can be very poor. Problems arise from the assumption that a close relationship exists between a drop and the volume of any liquid. The size of a drop of any liquid will vary not only with differences in the construction and composition of the dropper, but also with the viscosity, surface tension, density, and temperature of the liquid.
Two individuals dispensing the same liquid from identical droppers may produce drops of different sizes because of variations in the pressure, speed of dropping, and the angle at which the dropper is held.