Our guide to Like many other medications that affect your hormone levels, finasteride can cause some side effects. Appreciate your imput.I`ve heard people say they switched to generic and it never worked as well. I'm on 9 months generic 1mg from Costco and it doesn't seem to be stopping loss. I am assuming that the Finasteride is working, but I've heard (Some Forum a while back) that the generic is not as good as Proscar. I appreciate your feedback. I rated it a 5 as of now because it's still too early to tell if this medication is working. I am just wanting to get a diagnosis from him which I will then forward to my guy in the USA. This is for medications that are produced in the USA. side effects include: Finasteride if you purchase it in the USA is the same medication as Propecia and should work exactly the same.In theory, these two medications should be the same as the FDA controls the quality of the drug. best to you.I thought Finasteride was the active ingredient in all variations of the original Propecia pill so there shouldn't be any difference if the dosage is the same unless there are different grades or strengths.Some people have claimed the drug was not as effective when they switched from Propecia to a generic. Propecia (finasteride) is available as a generic medication and may be significantly cheaper compared to the brand version. Maybe they just needed to give it more time or received a faulty batch. (Have you heard of him ~ Professor Rodney Sinclair. Our guide to Generic Propecia has been available for several years in the United States. Advise Me with Something Good I Can Do to my Hair.What Causes Hair Loss in Women? Tablets of generic Propecia contain the same 1mg dose of finasteride as the branded medication that’s marketed and sold by Merck.Just like Propecia made by Merck, generic finasteride provides the same results as a treatment for hair loss. Article is at goo.gl/SPL7PzThe generic should be the same formula as the name brand due to FDA controls. Finasteride (Propecia) is used to treat male pattern hair loss in men. Studies show that finasteride, the active ingredient in Propecia, is highly effective as a treatment for male pattern baldness. Propecia may also be used for purposes not listed in this medication guide.