Patents are protected by the disclosure of technical contents. When applying for a patent, you should disclose the formula, dosage, preparation method, usage method, effective dosage, etc., so that you have no secrets to protect.
Patent application is not complicated. It is easier to authorize with the help of professionals, but it will only make the secret recipe lose its confidentiality.
Legal operation is mainly through drug registration, but only in the name of legal person, and the cost is extremely high, and clinical trials may be needed. At present, the drug transport environment is not ideal. I know that some drugs that have obtained clinical approval and obtained patents are difficult to transfer successfully. I suggest you reconsider.