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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 RJY9IFFIKieDm7DwPlxJ9ZET09H78KV/yXWfc5zqsdy7spQ8dAnWeFnRfzD6VPFx
 LncHed1hTj3RQ6+wZ7cYgA==

<SEC-DOCUMENT>0001179110-05-020750.txt : 20051108
<SEC-HEADER>0001179110-05-020750.hdr.sgml : 20051108
<ACCEPTANCE-DATETIME>20051108141806
ACCESSION NUMBER:		0001179110-05-020750
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051107
FILED AS OF DATE:		20051108
DATE AS OF CHANGE:		20051108

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KUNKLE GARY K JR
		CENTRAL INDEX KEY:			0001201820

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19725
		FILM NUMBER:		051185838

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		7178494296

	MAIL ADDRESS:	
		STREET 1:		DENTSPLY INTERNATIONAL
		STREET 2:		PO BOX 872
		CITY:			YORK
		STATE:			PA
		ZIP:			17405-0872

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PERRIGO CO
		CENTRAL INDEX KEY:			0000820096
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				382799573
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		515 EASTERN AVENUE
		CITY:			ALLEGAN
		STATE:			MI
		ZIP:			49010
		BUSINESS PHONE:		6166738451

	MAIL ADDRESS:	
		STREET 1:		515 EASTERN AVENUE
		CITY:			ALLEGAN
		STATE:			MI
		ZIP:			49010
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-11-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000820096</issuerCik>
        <issuerName>PERRIGO CO</issuerName>
        <issuerTradingSymbol>PRGO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001201820</rptOwnerCik>
            <rptOwnerName>KUNKLE GARY K JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>DENTSPLY INTERNATIONAL</rptOwnerStreet1>
            <rptOwnerStreet2>P.O. BOX 872</rptOwnerStreet2>
            <rptOwnerCity>YORK</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>17405-0872</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-11-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3028</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9050</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Restricted stock awarded Mr. Kunkle in his capacity as a Director.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Gary K. Kunkle</signatureName>
        <signatureDate>2005-11-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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