It is uncertain which drugs Finasteride can not be taken with, but Finasteride is a prescription drug, if you need to take with other drugs, you need to consult a doctor in advance to avoid the risk of medication. Finasteride is a specific type II 5α-reductase competitive inhibitor, which can inhibit the conversion of peripheral testosterone to dihydrotestosterone, and also reduce the level of dihydrotestosterone in the blood, skin and other tissues, thus inhibiting prostate hyperplasia, improving the already symptomatic benign prostatic hyperplasia, decreasing the incidence of acute urinary retention, and decreasing the risk of needing transurethral resection of the prostate and prostatectomy. During treatment with finasteride, some patients may experience adverse reactions such as rash, impotence, loss of libido, breast discomfort, etc. The symptoms are usually mild and transient, but if persistent and progressive discomfort occurs, the patient should seek medical attention in time and be given relative treatment by a doctor. Finasteride is usually taken for a long time, and patients should have regular prostate examinations in order to clarify its therapeutic effects. Finasteride should be used in accordance with the doctor’s prescription, if you need to take with other drugs, should be used under the guidance of the doctor, in order to avoid serious effects.