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</LabelSeparator><Level>2</Level><ElementName>ctrx_RecentAccountingPronouncementsTextBlock</ElementName><ElementPrefix>ctrx_</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><PreferredLabelRole>terseLabel</PreferredLabelRole><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="D2013Q2YTD" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;div style="font-family:Times New Roman;font-size:10pt;"&gt;&lt;div style="line-height:120%;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-weight:bold;"&gt;Recent Accounting Pronouncements&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-left:24px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;a) Recent accounting standards implemented &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:justify;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;In February 2013, the FASB issued an update on the reporting of amounts reclassified from accumulated other comprehensive income. An entity is required to present either parenthetically on the face of the financial statements or in the notes, significant amounts reclassified from each component of accumulated other comprehensive income and the income statement line items affected by the reclassification. However, an entity would not need to show the income statement line item affected for certain components that are not required to be reclassified in their entirety to net income, such as amounts amortized into net periodic pension cost. The standard is effective prospectively for public entities for fiscal years, and interim periods with those years, beginning after December 15, 2012. Early adoption is permitted. The Company adopted this standard on January 1, 2013; however, the implementation of the amendments did not have a significant impact on its financial results or in the presentation and disclosure of its financial statements.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:justify;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:justify;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;No other new accounting standards have been adopted during the three and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;color:#000000;text-decoration:none;"&gt;six&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt; month periods ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;color:#000000;text-decoration:none;"&gt;June&amp;#160;30, 2013&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;.&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;padding-left:30px;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;font-style:italic;"&gt;b) Recent accounting standards issued &lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;text-align:left;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;&lt;br clear="none"/&gt;&lt;/font&gt;&lt;/div&gt;&lt;div style="line-height:120%;font-size:9pt;"&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt;No new standards have been issued during the three and &lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;color:#000000;text-decoration:none;"&gt;six&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt; month periods ended &lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;color:#000000;text-decoration:none;"&gt;June&amp;#160;30, 2013&lt;/font&gt;&lt;font style="font-family:inherit;font-size:9pt;"&gt; that the Company assessed to have a significant impact on its financial results or in the presentation and disclosure of its financial statements.&lt;/font&gt;&lt;/div&gt;&lt;/div&gt;</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>Recent Accounting Pronouncements</ElementDefenition><ElementReferences>No definition available.</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Recent Accounting Pronouncements</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Recent Accounting Pronouncements</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://www.catamaranrx.com/role/RecentAccountingPronouncements</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>2</NumberOfRows></InstanceReport>
