Source:http://linkedlifedata.com/resource/umls/id/C0020592
MSH: Drugs used to induce drowsiness or sleep or to reduce psychological excitement or anxiety.,CSP: agents used to induce drowsiness or sleep or to reduce psychological excitement or anxiety.,NCI: A drug that calms and soothes, and reduces stress and tension. Tranquilizers are used to treat anxiety and insomnia.,NCI: A drug or substance used to calm a person down, relieve anxiety, or help a person sleep.,NCI: Any agent that depresses the central nervous system (CNS) and is used to induce calm and sleep.