We used to work together <a href="http://toz.szczecin.pl/67087433_1105992786268977_9165358444708888576_n/">cheap medication</a>  BP has already set aside $42 billion for clean-up costs, fines and compensation for a blast and oil spill at a drilling rig in the Gulf of Mexico. A trial of BP over the disaster three years ago is due to resume in the United States on Monday.