<?xml version="1.0" encoding="utf-8"?>
<!--
Taxonomy based on XBRL standard Version 2.1.
Created by UBmatrix Taxonomy Designer 3.0.2681.0 (2007-02-06 18:45).  
Contact www.ubmatrix.com
Copyright (c) 2002-2007 UBmatrix inc., All Rights Reserved
Produced on 2007-03-02 19:02:27
-->
<schema xmlns="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ci="http://www.xbrl.us/patterns/2007/BasicDimension" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" targetNamespace="http://www.xbrl.us/patterns/2007/BasicDimension" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <annotation>
    <appinfo>
      <link:linkbaseRef xlink:type="simple" xlink:href="BasicDimension-label.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="BasicDimension-definition.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="BasicDimension-presentation.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links, all" />
      <link:linkbaseRef xlink:type="simple" xlink:href="BasicDimension-calculation.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links, all" />
    </appinfo>
  </annotation>
  <import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
  <import namespace="http://xbrl.org/2005/xbrldta" schemaLocation="http://www.ubmatrix.com/XBRL/xbrldta-2005.xsd" />
  <element id="ci_AllRegions" name="AllRegions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_AllSegments" name="AllSegments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_AnalysisAxisAbstract" name="AnalysisAxisAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_AnalysisBuildingBlocksAbstract" name="AnalysisBuildingBlocksAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_AnalysisPrimaryConceptsAbstract" name="AnalysisPrimaryConceptsAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_AsiaRegion" name="AsiaRegion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_ConsumerHealthSegment" name="ConsumerHealthSegment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_EuropeRegion" name="EuropeRegion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_GenericsSegment" name="GenericsSegment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_OtherRegions" name="OtherRegions" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_OtherSegments" name="OtherSegments" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_PharmaceuticalsSegment" name="PharmaceuticalsSegment" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
  <element id="ci_RegionsAxis" name="RegionsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_Sales" name="Sales" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" xbrli:balance="credit" nillable="true" />
  <element id="ci_SalesAnalysisAbstract" name="SalesAnalysisAbstract" type="xbrli:stringItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_SegmentsAxis" name="SegmentsAxis" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_Table-SegmentsAndRegionsCube" name="Table-SegmentsAndRegionsCube" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" xbrli:periodType="duration" abstract="true" nillable="true" />
  <element id="ci_USAndCanadaRegion" name="USAndCanadaRegion" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" xbrli:periodType="duration" nillable="true" />
</schema>
