“…11 The bioavailability of these drugs is correlated with several factors including age of the patient, genetic make-up, gut function, gut flora, and types of ingested food, in addition to the chemical and physical properties of the drug. 17,18 In a multicentric phase III clinical trial, low doses of cytostatics were compared to higher doses with regard to the outcome of SCT and survival. The study was permanently halted as higher doses were clearly associated with a better prognosis.…”