Valeant Pharmaceuticals International, Inc. has entered an agreement to acquire Solta Medical, Inc. for approximately $250 million in cash. The transaction is expected to close in 1Q14.   Solta develops and manufactures energy-based medical device systems for aesthetic applications. Solta’s products include the Thermage CPT system, a non-invasive treatment using radiofrequency energy for skin tightening, the Fraxel repair system for use in dermatological procedures requiring ablation, coag...