Contacting a primary pharmaceutical firm if I am serious?

How do I get it patented here within Nigeria when I don’t have money and convey it to many companies that produce medicine. Had been a big problem because it have to
A drug that does what I claim will have to be put through clinical a trial which is not a small work for a poor man. Contacting a major pharmaceutical firm if I am serious is the solitary way forward if the World still believes Nigerians