THE WOODLANDS, Texas--(BUSINESS WIRE)--Pernix Therapeutics Holdings, Inc. (NYSE Amex: PTX), a specialty pharmaceutical company primarily focused on the pediatric market, today announced that it will release its second quarter 2011 financial results before the U.S. stock market opens on Tuesday, August 16, 2011. The Company has scheduled a conference call on August 16, 2011 at 9:00 am EDT to discuss the financial results and the current launch of NatrobaTM (spinosad) topical suspension 0.9%, a prescription treatment for head lice.