i am 54 years old. recently diagnosed with gastroparesis. i take vyvanse 30 mg qd. can it cause gastroparesis? weaned off nortriptyline 25 mg q hs 2 weeks ago i took for years to help me sleep. hasn t helped yet. gasroenterologist has me on urocholine 10 mg qid and it has help some with all the nause, abd distention, abd pain, ect. i also take bystolic 10 mg qd, nexium 40 mg qd, gabepentin 1,200 mg q hs, vit.b12 1000mcg/ml 1 ml im q month and am vit d deficient too but vit d3 upsetting my stomach. i,m getting worse. can any of these medications cause gastroparesis? thanks.