I was told not to take Deca and Finasteride. But nobody could explain why. So I took them both anyway. I was doing Deca and Finasteride only, and my hair was falling out like mad. I couldn't understand it. Deca is supposed to be safe and I THOUGHT that finasteride would make it even safer on my hair. I stopped the finasteride stat, and my hair has stopped shedding. I am taking Deca only. I don't mind the sexual side effects.
I found a good explaination about Deca and finasteride as well as other steroids and hairloss on the following web-site.
www.hairloss-research.org
Great info. Check it out before you make any dicisions