What is the difference between oral antiviral drugs against hepatitis C produced in Laos and India? Is the effect the same?

Drugs produced in India and other countries are generic drugs, but they are also divided into formal authorized manufacturers and compulsory imitation manufacturers. The authorized manufacturer is a manufacturer with the original factory authorization certificate, which does not involve violating patent laws and regulations, and its efficacy is almost the same as that of the original factory. Forcibly copying the manufacturer's medicine, the curative effect can not be guaranteed, and it is recognized as counterfeit by the World Health Organization. Therefore, it is not allowed to purchase fake halal drugs in China, which can be seen in the inscription.