That's one odd Dermatologist, mine were pushing pills at me in no time at all. Try calling the office and tell the doctor that you have researched the drug and feel that it is best if you start taking it now instead of waiting for 6 months. It is not like your asking for Valium or oxycontin. If he still seems like he is not willing to give it to you just tell him that you are going to look for another dermatologist and to cancel your next appointment. I have seen a couple dermatologists and none of them suggested that I wait for 6 months, both of them told me what is proven to work and made sure I understood that I would be taking or using them for as long as I wanted to keep my hair. Other than that they were more than willing to send my prescription to the local drug store.