antihyperlipidemic
adjective
an·ti·hy·per·lip·id·emic
variants:
or chiefly British antihyperlipidaemic \ -ˌhī-pər-ˌlip-əd-ˈē-mik 
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Medical Definition of antihyperlipidemic
: acting to prevent or counteract the accumulation of lipids in the blood
an antihyperlipidemic drug