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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 f+wdRpFMX8pmbaJ4y7EXpg==

<SEC-DOCUMENT>0000897485-04-000018.txt : 20040806
<SEC-HEADER>0000897485-04-000018.hdr.sgml : 20040806
<ACCEPTANCE-DATETIME>20040806131813
ACCESSION NUMBER:		0000897485-04-000018
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040804
FILED AS OF DATE:		20040806

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHATTEM INC
		CENTRAL INDEX KEY:			0000019520
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				620156300
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1130

	BUSINESS ADDRESS:	
		STREET 1:		1715 W 38TH ST
		CITY:			CHATTANOOGA
		STATE:			TN
		ZIP:			37409
		BUSINESS PHONE:		4238214571

	MAIL ADDRESS:	
		STREET 1:		1715 W 38TH ST
		CITY:			CHATTANOOGA
		STATE:			TN
		ZIP:			37409

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHATTEM DRUG & CHEMICAL CO
		DATE OF NAME CHANGE:	19790111

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KELLOGG PETER R
		CENTRAL INDEX KEY:			0000897485

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-05905
		FILM NUMBER:		04957149

	BUSINESS ADDRESS:	
		STREET 1:		C/O SPEAR LEEDS & KELLOGG
		STREET 2:		120 BROADWAY
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10271
		BUSINESS PHONE:		2123895840

	MAIL ADDRESS:	
		STREET 1:		48 WALL STREET
		STREET 2:		C/O IAT REINSURANCE CO LTD
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10005
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2004-08-04</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000019520</issuerCik>
        <issuerName>CHATTEM INC</issuerName>
        <issuerTradingSymbol>chtt</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000897485</rptOwnerCik>
            <rptOwnerName>KELLOGG PETER R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>48 WALL STREET</rptOwnerStreet1>
            <rptOwnerStreet2>C/O IAT REINSURANCE CO LTD</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-08-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>43600</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.8092</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2511800</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By IAT Reinsurance Co LTD</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2004-08-05</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>23900</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.3538</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2487900</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By IAT Reinsurance Co LTD</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">IAT Reinsurance Co LTD is a Bermuda corporation of which Mr.Kellogg is the sole
holder of voting stock. Mr.Kellogg disclaims beneficial ownership of these shares.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>peter r kellogg</signatureName>
        <signatureDate>2004-08-06</signatureDate>
    </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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