The drugs are usually from the different company as they produce them and lets retail company like the pharmacy store to help them sell their products, but they must pay to feature their products of this week or even the following week. The drugs are produced in the main factory where authorised person will come and inspect whether the place is appropriate for production. The drugs must go through many trial test and authorisation to make it through the market. It goes through lots of inspection for manufacturing the different drugs. It ensures that the efficacy, safety, quality and clinical use is up to standard. From marketing to making the drug possible, it can be costly and time consuming. Most of the time the money is spend on formulating the drug and making the drug save for consumers to use to avoid any serious consequences caused.