drugs
Types of Adverse Drug Reactions
Introduction
 Overview of Adverse Drug Reactions (adverse effects) are any unwanted effects of drugs (including medications). There are several different types: Dose-related Allergic Idiosyncratic or another antidiabetic medication reduces the blood sugar level too much. This type of adverse drug reaction is usually predictable but sometimes unavoidable. It may occur if a drug dose is too high Overdose Toxicity , if the person is unusually sensitive to the drug, or if another drug slows the metabolism of the first drug and thus increases its level in the blood (see are not dose-related but require prior exposure to a drug. Overview of Allergic Reactions develop when the body's immune system develops an inappropriate reaction to a drug (sometimes referred to as sensitization). After a person is sensitized, later exposures to the drug produce one of several different types of allergic reaction. Sometimes doctors do Idiosyncratic adverse drug reactionsresult from mechanisms that are not currently understood. This type of adverse drug reaction is largely unpredictable. Examples of such adverse drug reactions include rashes, jaundice, anemia, a decrease in the white blood cell count, kidney damage, and nerve injury that may impair vision or hearing. These reactions tend to be more serious but typically occur in a very small number of people. Affected people may have genetic differences in the way their body metabolizes or responds to drugs. or other Nonsteroidal Anti-Inflammatory Drugs . The reason is that these medications reduce the production of prostaglandins, which help protect the digestive tract from stomach acid. 