Similar to technology, pharmacology has been evolving constantly. You will always come across a new drug that is available in the market. A few drugs save lives whereas some turn life highly livable. Again, you will also come across some drugs that would help you in shedding those undesired pounds. Among some breakthrough pharmaceutical releases, Cetilistat is one. This drug has been designed for treating obesity effectively. Its working is similar to Xenical, an older drug.