This product is a brain function improving drug, which is a cyclized derivative of γ-aminobutyric acid (GABA). This product selectively acts on the central nervous system through the blood-brain barrier. Animal experiments have shown that this product has a good promoting effect on the memory reproduction process of normal rats' discrimination learning, can counteract the memory loss caused by hypoxia, and can effectively improve memory disorders caused by certain reasons.

This product is a semi-synthetic ergot alkaloid derivative. It has α-receptor blocking and vasodilation effects. It can enhance the metabolism of brain cell energy and increase the utilization of oxygen and glucose. It can promote the conversion of neurotransmitter dopamine to increase nerve conduction, enhance the synthesis of brain protein, and improve brain function.

This drug belongs to the 4-nitrogen steroid hormone compound and is a specific type II 5α-reductase competitive inhibitor. It inhibits the conversion of peripheral testosterone into dihydrotestosterone and reduces the levels of dihydrotestosterone in the blood, prostate, skin and other tissues. The growth, development and benign hyperplasia of the prostate depend on dihydrotestosterone. Finasteride inhibits prostate hyperplasia by reducing the levels of dihydrotestosterone in the blood and prostate tissues, and improves the related clinical symptoms of benign prostatic hyperplasia.