Question: Hi, I'm a 38 y/o female. 5'7" and 140 lbs. the only prescription med I take is vyvanse 100mg daily. I am supposed to have the first of two knee surgeries soon. I have a screw from acl that has fallen out and is sitting in my joint. I also have torn acl graft, 4 meniscal tears and various other things that need to be done. I will be receiving cadaver acl graft, both meniscal rings, bone plugs and knee cap replacement. My doctor wants me to get the screw out ASAP. The problem is this: he wants me to d/c vyvanse 2 weeks prior...no weaning. I take vyvanse for add, but my dosage was increased to 100mg after a head injury a little over a year ago. I skip some days from time to time, but I'm afraid I won't function if I have to stop for two weeks. I have 3 small children and my short term memory is terrible without it. What are the contraindications of this med prior to surgery? I'm having trouble getting straight forward answer from my surgeon. This med is unfortunately my lifeline and important for my ability to function. 3 days is the longest I can go without it before I start losing my ability to process a thought, be able to fix a meal without forgetting what I've added. Please advise.