Most adults taking Vyvanse land on a dose somewhere between 30 mg and 70 mg per day, with the starting dose set at 30 mg once daily in the morning. There’s no single “average” dose that works for everyone. Instead, prescribers start low and adjust upward in weekly increments until symptoms improve without bothersome side effects.
Starting Dose and How It’s Adjusted
The FDA-approved starting dose for adults is 30 mg taken once each morning, regardless of whether the prescription is for ADHD or binge eating disorder. From there, the dose can be increased by 10 mg or 20 mg at roughly one-week intervals. The ceiling is 70 mg per day.
This gradual approach exists because Vyvanse is a prodrug. Your body doesn’t use it directly. After you swallow a capsule or chewable tablet, enzymes in your red blood cells break it down into its active form, dextroamphetamine. That conversion process means the medication ramps up gradually in your system, typically reaching peak levels within about one to three hours. How efficiently your body handles that conversion, along with your weight, metabolism, and symptom severity, all influence where your ideal dose falls.
ADHD vs. Binge Eating Disorder Dosing
For ADHD, the prescribing label doesn’t specify a particular target dose. The goal is simply to find the lowest effective amount within the 30 mg to 70 mg range. Some adults do well at 30 mg; others need the full 70 mg.
For binge eating disorder, the guidelines are slightly more specific. The recommended target range is 50 mg to 70 mg per day, still starting at 30 mg but increasing by 20 mg each week until reaching that window. If binge eating doesn’t improve at the target dose, the medication is typically discontinued rather than continued indefinitely.
Available Strengths
Vyvanse comes in capsules (10 mg, 20 mg, 30 mg, 40 mg, 50 mg, 60 mg, and 70 mg) and chewable tablets (10 mg, 20 mg, 30 mg, 40 mg, 50 mg, and 60 mg). You can swap between capsules and chewable tablets at the same strength without any difference in dosing. If swallowing capsules is difficult, you can also open a capsule and mix its contents into water, yogurt, or orange juice, then consume the entire mixture right away.
Kidney Function Can Lower the Maximum Dose
Because Vyvanse and its active form are partly cleared through the kidneys, adults with significant kidney problems face lower dose ceilings. For people with severe kidney impairment, the maximum drops to 50 mg per day. For those with end-stage kidney disease, the cap falls to 30 mg per day. If you have kidney issues, your prescriber will likely factor this in before writing your first prescription.
What to Expect During Dose Changes
Each time your dose goes up, you’ll typically stay at the new level for at least a week before making another change. This gives you and your prescriber enough time to gauge whether symptoms have improved and whether side effects like appetite loss, trouble sleeping, or increased heart rate are manageable. Blood pressure and heart rate checks are a standard part of ongoing monitoring at any dose, since stimulant medications can raise both.
Finding the right dose often takes a few weeks of adjustments. It’s common to try two or three levels before settling on one. The “right” dose is the one where your symptoms are well controlled and side effects are tolerable, not necessarily the highest or lowest available option.