I took 2 doses of Finax 1mg accidentally. One at morning and other at night. Will this cause any problem for me?

Taking 2 mg in a 24 hour period for a single time will not cause any additional issues over taking just 1 mg. However, whenever a patient uses a dose that was not intended, the prescribing physician should be notified. 

Hi thereTaking by accident double dose of finasteride should not be an issue I would let your doctor know if you have not told him yet.

An extra 1 mg Finasteride taken once will not have any appreciable impact. A different question is whether you should take Finasteride at all. It does have severe sexual side effects in a few percent of patients but taking even that small risk may be a bad bet. This would not be my first choice in a pharmacological approach. I would prefer Minoxidil, LLLT and PRP as alternatives. 

Taking two doses of finasteride will have no problem for you. In fact, your body will never know that you doubled the dose

Taking 2 doses of 1 mg Finasteride on one occasion should not cause you any problems.  It would be advised to continue forward on the recommended dose prescribed by your physician.  Good luck!!