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`Contraindications
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`Contents of this page:
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`• Definition
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`Definition
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`A contraindication is a specific situation in which a drug, procedure, or surgery should NOT be used, because it may be harmful to the patient.
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`Some treatments may cause unwanted or dangerous reactions in people with allergies, high blood pressure, or pregnancy. For example, certain
`decongestants are contraindicated in people with high blood pressure and therefore should be avoided.
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`Many medications interact and should not be used together by the same person. For instance, a person who takes warfarin to thin the blood should not
`take aspirin.
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`There are two types of contraindications:
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`• Partial contraindication means that caution should be used when two drugs or procedures are used together.
`• Absolute contraindication means that it could result in a life-threatening situation.
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`Update Date: 1/22/2007
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`https://web.archive.org/web/20090324033016/http://www.nlm.nih.gov/medlineplus/ency/article/002314.htm
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`6/1/2016
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`Ex. 2022-0001
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`MedlinePlus Medical Encyclopedia: Contraindications
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`Page 2 of 2
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`Updated by: Benjamin W. Van Voorhees, MD, MPH, Assistant Professor of Medicine and Pediatrics, The University of Chicago, Chicago, IL. Review provided by VeriMed Healthcare Network.
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`The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed physician should be consulted for
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`Page last updated: 03 March 2009
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`https://web.archive.org/web/20090324033016/http://www.nlm.nih.gov/medlineplus/ency/article/002314.htm
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`Ex. 2022-0002