80- 120 yuan each. It's too cheap. It may be a fake product.
If you are worried about side effects or limited economic ability, you can consider Chinese medicine products.
For traditional Chinese medicine, use
Shenqianggen capsule
It is still more effective. It is a very advanced professional product with good effect. No side effects. This is found in many hospitals
There are pharmacies, but it is not guaranteed to be available all over the country.