I think quitting cannabis and quitting tobacco are similar. There is the initial physical withdrawal. Some people still have cravings 3 to 6 months down the line, but not as strong. Then there is the psychological addiction. It still has to do with brain chemistry because these substances mess with brain chemistry. I would think medications would be affected by quitting cannabis. So the idea that this is just a matter of forming a new habit in 30 days...is a bit of wishful thinking. It's war. Get ready for war. Are you ready for that? If you are...sincere best wishes. I love it when folks get free.