TEXT OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION. CONFIDENTIAL TREATMENT REQUESTED UNDER 17 C.F.R. SECTIONS 200.80(B)(4) AND 240.24B-2. AMENDMENT NO. FOUR TO LICENSE AND COMMERCIALIZATION AGREEMENT This AMENDMENT NO. FOUR...License and Commercialization Agreement • March 16th, 2006 • Valeant Pharmaceuticals International • Pharmaceutical preparations • California
