<SEC-DOCUMENT>0001104659-14-048130-index.html : 20140627
<SEC-HEADER>0001104659-14-048130.hdr.sgml : 20140627
<ACCEPTANCE-DATETIME>20140625060050
ACCESSION NUMBER:		0001104659-14-048130
CONFORMED SUBMISSION TYPE:	S-1MEF
PUBLIC DOCUMENT COUNT:		4
<REFERENCE-462B>333-196097
FILED AS OF DATE:		20140625
DATE AS OF CHANGE:		20140625
EFFECTIVENESS DATE:		20140625

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Amphastar Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001297184
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				330702205

	FILING VALUES:
		FORM TYPE:		S-1MEF
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-197007
		FILM NUMBER:		14938656

	BUSINESS ADDRESS:	
		STREET 1:		11570 SIXTH STREET
		CITY:			RANCHO CUCAMONGA
		STATE:			CA
		ZIP:			91730
		BUSINESS PHONE:		909-980-9484

	MAIL ADDRESS:	
		STREET 1:		11570 SIXTH STREET
		CITY:			RANCHO CUCAMONGA
		STATE:			CA
		ZIP:			91730
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-1MEF
<SEQUENCE>1
<FILENAME>a12-26441_13s1mef.htm
<DESCRIPTION>S-1MEF
<TEXT>
Document 1 - file: a12-26441_13s1mef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>a12-26441_13ex5d1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: a12-26441_13ex5d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>a12-26441_13ex23d1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: a12-26441_13ex23d1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g2644113kgi001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g2644113kgi001.jpg

</DOCUMENT>
</SEC-DOCUMENT>