Tokyo, Japan, Jan 22, 2007 - (JCN Newswire) - Novartis Pharma K.K. and Mochida Pharmaceutical Co., Ltd. today announced that the two companies have signed a contract to co-promote the angiotensin receptor blocker (ARB) Diovan(R) (valsartan) in Japan. Based on this agreement, the two companies will begin co-promoting Diovan in February 2007.