Some contraindications are absolute, meaning that there are no reasonable circumstances for undertaking a course of action. For example, a baby with a fever should never be given aspirin because of the risk of Reye's syndrome, and a person with an anaphylactic food allergy should never eat that food. Similarly, a person with Hemochromatosis should not be administered iron preparations.
Other contraindications are relative, meaning that the patient is at higher risk of complications, but that these risks may be outweighed by other considerations or mitigated by other measures. For example, a pregnant woman should normally avoid getting X-rays, but the risk may be far less than the risk of not diagnosing or being able to treat a serious condition such as tuberculosis or a broken bone.
Prevalence of contraindications to mefloquine use among USA military personnel deployed to Afghanistan.(Research)
Feb 11, 2008; Authors: Remington L Nevin (corresponding author) ; Paul P Pietrusiak ; Jennifer B Caci  Background Malaria poses a...
Design of a graphical and interactive interface for facilitating access to drug contraindications, cautions for use, interactions and adverse effects.(Research article)
Jun 02, 2008; Authors: Jean-Baptiste Lamy (corresponding author) ; Alain Venot ; Avner Bar-Hen ; Patrick Ouvrard ; Catherine Duclos...