THE WOODLANDS, Texas--(BUSINESS WIRE)--Pernix Therapeutics Holdings, Inc. (NYSE Amex: PTX), a specialty pharmaceutical company, today announced that Cooper Collins, President and Chief Executive Officer, will present at the Cowen and Company 32nd Annual Health Care Conference on Wednesday, March 7, 2012 at 8:40 a.m. EST. The conference will be held at The Boston Marriott Copley Place.