The nature of Carbon-Fluorine bonds means that Fluorine has a number of attributes which give it a special place in pharmaceutical preparations. The stability of the C-F bond means that many drugs are fluorinated to control delayed release or delayed metabolism. It is well documented that Fluorination can often increase both the medical efficacy and anti-inflammatory effect of many preparations. NMR spectroscopy is also a valuable tool for quality control and in particularly suited to highly sensitive and accurate measurement of organofluorine based medication.