No, cocaine is not a product of nature. Nature has coca leaves. That’s the natural way to use that medicine.
Alcohol again, naturally fermented and utilised in moderation can also bring benefits.
Your writing and behaviour here is drawing attention to your own state of mind.
In other words, utilising medicine as nature intended, can be useful. Abusing it or utilising it with ignorance, can have a negative effect.
It looks as if you are the problem.