They come sealed from reputable manufacturers and pharmacies in India that you can read about online.

I suppose someone could create fraudulent drugs, but honestly, it's probably cheaper just to sell you the real deal. And just like other businesses they want your repeat business.

I know they are the real drug in my case because I take them for mildly high blood pressure. It's trivial to measure blood pressure, and I can see that they have the same effect as the American drugs of the same dosage.