an extreme allergic reaction that can lead to respiratory distress, circulatory collapse and death.
the trade or proprietary name of a drug, a registered trademark of the manufactures; written with an initial capital letter
the nonpropietary name of a drug; that is, a name that is not privately owned or trademarked; usually a simplified version of the chemical name; not capitalized
a result of drug therapy that is unrelated to or an extension of its intended effect; usually applies to an undesirable effect of treatment
a condition that may result from chronic use of a drug, in which a person has chronic or compulsive need for a drug regardless of its adverse effects; dependence may be psychological or physical
combined action of two or more drugs working together to produce an effect greater than any of the drugs could produce when acting alone. also called SYNERGISM
a condition in which chronic use of a drug results in loss of effectiveness and the dose must be increased to produce the original response