You can find more information about sphingomyelin phosphodiesterase using the following links:

PFID PFID Old Formal Annotation GeneDB PlasmoDB TDR Targets Subcellular Localization Affecting Drugs
Drug Name PubMed Articles (year of publication)
PF3D7_1238600 PFL1870c sphingomyelin phosphodiesterase GeneDB PlasmoDB TDR
GW4869
Scyphostatin
Expasy - NiceZime View
Brenda - The Comprehensive Enzyme Information System