Drug Glossary and Definition

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Pharmacist's Guide

Table of Contents

Drug Glossary - I

Ichthyosis Skin disorder with dryness, scaling and roughness.
Ileitis Inflammation of the ileum, the last section of the small intestine.
Ileostomy Surgical opening from the ileum, the end of the small intestine, to the outside of the body.
Immunosuppressants Powerful drugs that suppress the immune system. Immuno-suppressants are used in patients who have had organ transplants or severe disease associated with the immune system. These drugs include the following (some of which are not described in this book): azathioprine, basiliximab, betamethasone, chlorambucil, corticotropin, cortisone, cyclophosphamide, cyclosporine, dacliximab, dexamethasone, hydrocortisone, mercaptopurine, methylprednisolone, muromonab, muromonab-CD3, mycophenolate, prednisolone, prednisone, sirolimus, tacrolimus, thalidomide, triamcinolone, ursodiol.
Impotence Male’s inability to achieve or sustain erection of the penis for sexual intercourse.
Insomnia Sleeplessness.
Interaction Change in the body’s response to one drug when another is taken. Interaction may decrease the effect of one or both drugs, increase the effect of one or both drugs or cause toxicity.
Iron Supplements Products that contain iron in a form that can be absorbed from the intestinal tract. Supplements include ferrous fumarate, ferrous gluconate, ferrous sulfate, iron dextran, ironpolysaccharide.
iatrogenic malnutrition caused by treatment or diagnostic procedures
ileostomy opening from ileum to abdomen surface
ileum last part of the small intestine
immunity ability to resist certain diseases
inborn errors of metabolism congenital disabilities preventing normal metabolism
incomplete proteins proteins that do not contain all of the nine essential amino acids
infarct dead tissue resulting from blocked artery
inflammatory bowel diseases (IBDs) chronic conditions causing inflammation in the gastrointestinal tract
insecticides agents that destroy insects
insulin secretion of the islets of Langerhans in the pancreas gland; essential for the proper metabolism of glucose

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