Hi, My brother is using Mintop forte 5%. He started recently. The only side effect he is facing is the increased dandruff. Could you please advice, if he should continue this or not? I was checking somewhere that the usage can cause sexual problem like erectile dysfunction. Is that correct? Is this okay to discontinue at some point? Also I am currently using the Regaine s 5% foam. But I want switch to Mintop forte soon. WIill that be a problem? Thanks a lot in advance. Kind Regards