why does price of medicine increase rapidly?

In the context of increasing price, people have to work harder and harder to earn enough money to support their life. Every thing is increased highly such as food, renting room, transportation, especially medicine. Thus, medicine, which is very necessary and important to our life, costs very expensive these days. Its expensive causes people worry a lot. What is the reason for increasing price of medicine?
The biggest reason is the increasing price of foreign currency. You may wonder that why I have said that. Because nearly 90 percent of raw materials, which are used to produce medicine, was imported by many Europe countries. While the price of foreign currency is higher and higher day by day; the maker must pay more money to buy raw materials, so the costs of medicine we use is higher than ever. Moreover, the value of Vietnamese’s money is being lost rapidly while the value of foreign currency is being got higher. It means that people must pay more money having medicine for their health. So the solution for this problem is to control the value between Vietnamese money and foreign currency in a reasonable way; it depends on our government’s policies.
The next reason is “the heart” of doctor and medicine seller is not good. First, when a doctor wrote out a prescription for patients, if they use as much as expensive medicine especially imported ones, they can receive as much as percentage. Moreover, doctors do not believe in Vietnamese medicine in other word they love using imported once, so patient must pay much for imported medicine while its quality is the same with Vietnamese’s products. Second factor is the medicine sellers. Although our government does control the price of medicine, they can’t do with all medicine stores. It depends on conscience of seller. For example, in the list of medicine price sellers gave to the government "A" is sold 12000VND while the real price is 25000VND. One more time, the price of medicine is being increased.
Last but not least important factor is the limitation of produce medicine. In our country, a lot of necessary medicines were produced by little number of companies. It is very rarely, absolutely it is expensive. One more reason, companies which produced "A" medicine is located in the north while places need that medicine is in the south of country. To bring it to the south, people must use truck, plane, etc, so they must pay for transportation. As a result the cost of medicine is higher because of including transportation fees. Hopefully, our country will have more companies produced necessary medicine in many places so that more people can get over an illness and the cost of medicine can be decreased.
To sum up, price of medicine increases rapidly is caused by many factors such as the increasing of foreign currency, the conscience of responsible person, etc. In fact, a person who must bear with this problem is farmer, worker, and many poor people. Therefore, the first solution for the poor people is training their health as well as possible; waiting the help of our government works too.