RADNOR, Pa.--(BUSINESS WIRE)--PolyMedix, Inc. (OTC BB: PYMX, www.polymedix.com), an emerging biotechnology company developing acute care products for infectious diseases and acute cardiovascular disorders, announced today that its Board of Directors has approved a Stockholder Rights Plan. The Stockholder Rights Plan was adopted to protect long-term stockholder value, and to help ensure that all stockholders receive fair and equal treatment in the event of any proposed takeover.