Why is imported Viagra so expensive?

Viagra is not expensive to import, except in India. Because it involves patent issues, it should be expensive in principle. This company exists for profit. Generally, it takes several years or more to develop a drug, and hundreds of billions of dollars are invested. What enterprises rely on to recover costs is high, and it cannot be said that it is completely bad. Only when enterprises earn money can they have the motivation to develop more and better products. India does not protect drug patents.