The present invention discloses and claims novel pharmaceutical compositions, methods, and kits used for the contemporaneous, heterogeneously-oriented, multi-targeted therapeutic modification and/or modulation of cellular metabolic anomalies or other undesirable physiological conditions, including cancer, where the normal cellular biochemical function and/or the expression levels of various proteins/enzymes (i.e., the target molecules) are abnormal and must be modified and/or modulated in order to treat these metabolic anomalies or other undesirable physiological conditions, including cancer. Administration of the most effective medicinal agent(s) to be administered in combination with the administration of the sulfur-containing, amino acid-specific small molecules is disclosed.
