1, the hospital because of the need to treat the disease, the drug coverage is wide, covering almost all kinds of diseases, what drugs have, and the drugstore due to cost constraints, it is not possible to all the drugs are purchased back, they only purchase those commonly used, the best-selling drugs, and those niche, low-selling drugs will be directly abandoned.
Even if the pharmacy owner is rich and powerful, and the pharmacy area is also big enough, they will not sell that kind of niche drugs, because this kind of drugs can be sold in hospitals, but it is very difficult to sell them in the pharmacy, and it is very likely that they will not be able to sell a bottle in a year, and they will also take up the space and waste manpower and material resources, which is too uneconomical.
2, some drugs are more commonly used, sales are also good, but the price is too cheap or storage costs are too high, the pharmacy profits are too low, they are not willing to sell; but these drugs must be in the hospital, which is the state regulations.
For example, two dollars of Vitamin C tablets, hospitals have, and the drugstore basically do not, standing in the drugstore's point of view, even if the bottle of medicine sold all the profits, that is only two dollars, not enough to stuff teeth which! Pharmacies are more willing to sell dozens of dollars or even hundreds of dollars of Vitamin C effervescent tablets, although the effect is not as good as two dollars of ......
3, some special medicines, must be the second level of health care institutions have qualifications for the use and sale of ordinary pharmacies are naturally not.
Expanded Information:
The drugs prescribed by the hospital can not be purchased outside the pharmacy, not the hospital or certain stakeholders from the ghost, the main reason is that the pharmacy out of the consideration of cost and the pursuit of profit. In the end, the pharmacy is still doing business, and profit is always the first priority.
The drugs in the hospital's pharmacy are prescription drugs, and the hospital's drug dosage is large, but the pharmacy's dosage may be relatively small, and it may be that they are no longer purchasing to avoid expiration. You can't just blame the hospital.