Hygenics Pharmaceuticals Inc.: The Laguna Hills company...

Hygenics Pharmaceuticals Inc.: The Laguna Hills company said it will undertake a mandatory exchange of all outstanding common stock certificates. The company said the exchange is due to a perceived duplication of certificates from its predecessor, Brian Pharmaceuticals Inc. The companies merged in December, 1994. Hygenics Pharmaceuticals Inc. develops and markets topical antimicrobials.