It depends on what active ingredient. What you have written is symptom relief drugs. In 10 cases out of 10, you can pick up a similar symptomatology much cheaper, which will act the same.
For more serious drugs, before buying, I advise you to Google the studies that they have passed. And as a separate item, check the "list of drugs" (link below) to check if they are trying to sell you another fuflomycin.
Here is the link: https://goo.gl/3wvkAM
Don't get sick.
From personal experience, I can say that, yes, it makes sense. But this is exclusively my experience. These funds help me exceptionally well. However, I know a couple of people who are not helped by these funds. So everything is individual. It is clear only that these funds are not an empty shell!