I have seen my dr who prescribed me 2 subdermal 10micrograms that lasts for 7 days. I also have a box of valiums and 2mg subs strips. Can someone provide any advice bout how to use these to get off my heroin usage. I currently use bout 1pt of pure H a day sometime half a pt of pure. Has anyone had any experience with the patches and how many days will it be til I can see the light at the end of the tunnel.