Document and Entity Information	3 Months Ended
	Mar. 31, 2013	May 10, 2013 Class C special stock	May 10, 2013 Common stock
Entity Registrant Name	BIOSANTE PHARMACEUTICALS INC
Entity Central Index Key	0001023024
Document Type	10-Q
Document Period End Date	Mar. 31, 2013
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		65,211	24,422,240
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q1