Preferred Term:
oral contraceptives
Definition:
Compounds, usually hormonal, taken orally in order to block ovulation and prevent the occurrence of pregnancy. The hormones are generally estrogen or progesterone or both.
Concept Schemes:
NALT Core
NALT Full
NALT Full
Broader Concept:
URI:
https://lod.nal.usda.gov/nalt/28772
Download this Concept:
RDF/XMLCreated 2006-01-19, last modified 2013-01-15