NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,791 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

SNRI
A type of drug that is used to treat depression and certain other disorders. SNRIs increase the levels of the chemicals serotonin and norepinephrine in the brain. Nerves use these chemicals to send messages to one another. Increasing their levels in the brain helps improve mood. Also called serotonin-norepinephrine reuptake inhibitor.