When a company imports a product from abroad, and sells it at home, even though the manufacturer sells the product as well, this is known as parallel import. Such products are real, they are not counterfeit. These imports are legal, but they happen without the permission of the company who sells these products. Very often, they are called grey product.
Parallel importing is done for different reasons:
In the case of drugs, parallel importing may reduce the price of the drug, by introducing competition.