According to your situation, it is possible to develop drugs in your own way; According to the routine, the paintings made by myself will not be exactly the same as those painted by others because of the refining process! And the efficacy or formula may have the same probability!
For example, berberine can be obtained by various extraction methods; But it can't be said that berberine extracted by different hair methods can't work! It also violates the patent meaning! According to the usual practice, you can apply for a new type or invention patent;
If the final result is exactly the same from the production process and formula! Article 9 of the Patent Law: Where two or more applicants apply for a patent for the same invention-creation, the patent right shall be granted to the first applicant.