Adderall is certainly not the only ADHD medication. If the side effects are troublesome and impeding life, it’s probably time to try a different ADHD medication.
There are two types of stimulants for ADHD: amphetamine (Vyvanse, Adderall…) and methylphenidate (Ritalin, Concerta…). The majority of individuals do well on one or the other, but not both. This article provides lots of details on this:
So, yes, she should be able to try another medication. However, the doctor is right that a thorough evaluation and ADHD expert insights will be extremely helpful. You really should get ADHD medication managed by an expert in the field and not a pediatrician.
ADDitude Community Moderator, Author & Mentor on Parenting ADHD, Mom to teen w/ ADHD, LDs, and autism