Anxiety


A feeling of apprehension and fear, characterized by physical symptoms such as palpitations, sweating, and feelings of stress.

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  • Anxiety disorder

    A chronic condition characterized by an excessive and persistent sense of apprehension, with physical symptoms such as sweating, palpitations, and feelings of stress. Treatments include the comfort offered by understanding the condition, avoiding or desensitizing exacerbating situations, and medications.

  • Anxiety disorder, social

    Excessive fear of embarrassment in social situations that is extremely intrusive and can have debilitating effects on personal and professional relationships. Also called social phobia. Phobias are persistent, irrational fears of certain objects or situations. They recognize that their fear may be excessive or unreasonable, but are unable to overcome it. The symptoms and signs […]

  • Antimicrobial

    Antimicrobial: A drug used to treat a microbial infection. “Antimicrobial” is a general term that refers to a group of drugs that includes antibiotics, antifungals, antiprotozoals, and antivirals.

  • Antimetabolite

    Antimetabolite: A drug that is similar enough to a natural chemical to participate in a normal biochemical reaction in cells but different enough to interfere with the normal division and functions of cells. So named because the drug inhibits a normal metabolic process. Examples of antimetabolites include 6-mercaptopurine (6MP), methotrexate, and hydroxyurea.

  • Antimalarial

    Antimalarial: A drug directed against malaria. The original antimalarial agent was quinine which took its name from the Peruvian Indian word “kina” meaning “bark of the tree.” A large and complex molecule, quinine is the most important alkaloid found in cinchona bark. Until World War I, it was the only effective treatment for malaria. In […]


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