If you’re asking to pick up the Vyvanse prescription early, the law on schedule II drugs doesn’t allow it. However, you can likely get the guanfacine early (depending on your insurance really).
As for your 9-year-old on Vyvanse, why was she not started on 10 mg and titrate up as well? That is the standard of care for ADHD stimulant medication. It sounds like the dose may be too high for her. Or, Vyvanse could be the wrong stimulant for her.
There are two types of stimulants: amphetamine (Adderall, Vyvanse, Evekeo…) and methylphenidate (Ritalin, Concerta, Quillivant…). Almost everyone does well on one type or the other, but not both. She may be an individual who does better on a methylphenidate.
ADDitude Community Moderator, Parenting ADHD Trainer & Author, Mom to teen w/ ADHD, LDs, and autism