Pacira Pharmaceuticals Inc., of Parsippany, N.J., said it will scoop up Fremont, Calif.-based Myoscience Inc., which markets the Iovera system as a nonopioid treatment that alleviates pain through cryoanalgesia. Pacira will make an initial payment of $120 million, and Myoscience will be eligible to receive up to an additional $100 million upon achievement of certain regulatory and commercial milestones.