dexmethylphenidateListen to pronunciation(dex-MEH-thul-FEH-nih-dayt)A substance being studied in the treatment of fatigue and nervous system side effects caused by chemotherapy. It is a type of central nervous system stimulant.Search NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#