Where is Herceptin produced and what is its price?

Herceptin is produced by Roche, and its generic name is trastuzumab, and Herceptin is the trade name. Some of my patients bought trastuzumab (Herceptin) from Hong Kong, and the effect was good. It doesn't matter which is better. If Herceptin is genuine, it must be Roche's, and other trastuzumab can be obtained through formal channels. In addition, I suggest that it is best to do a detailed pathological immunohistochemistry before taking the medicine to understand the situation of Her-2. If only (+) or (++) FISH is negative, Herceptin treatment is not recommended. If appropriate, it depends on whether it can cooperate with chemotherapy and endocrine therapy.