BOCA RATON, Fla.--(BUSINESS WIRE)--Nutra Pharma Corp. (OTCBB: NPHC), a biotechnology company that is developing treatments for Adrenomyeloneuropathy (AMN), HIV and Multiple Sclerosis (MS), has announced today that its wholly-owned drug discovery subsidiary, ReceptoPharm, has filed a patent application with the United States Patent and Trademark Office for the use of RPI-78 as a novel method for treating arthritis in humans. RPI-78 is ReceptoPharm’s lead drug candidate being studied for the treatment of pain.