In the state of California a FNP can write Rx's for controlled substances, even triplicates like oxycontin, methadone, ect. I had a patient today that has a mail order pharmacy. They refused to fill her Ambien "because it was written by a FNP and FNPs can not write for controls". When I called this mail order pharmacy they told me the same thing. I told the that in the state of California they can and that the RX was written in California. If this pharmacy is in a state that NPs can not write Rx's for controlled substances can they refuse to fill it even though it was written in a state that allows it? The pharmacy never even contacted us telling us to have the script re-written by an MD....:angryfire I have never had this problem with a mail order pharmacy in the past.