Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2015	Jul. 30, 2015
Document Information [Line Items]
Entity Registrant Name	PERNIX THERAPEUTICS HOLDINGS, INC.
Entity Central Index Key	0001024126
Document Type	10-Q
Document Period End Date	Jun. 30, 2015
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Is Entity a Well-known Seasoned Issuer?	No
Is Entity a Voluntary Filer?	No
Is Entity's Reporting Status Current?	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		61,037,804
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2015