The most common signs that your Vyvanse dose is too high include trouble sleeping, a rapid heartbeat, heightened anxiety or irritability, and physical restlessness. While Vyvanse can be a life-changing medication for managing ADHD and binge eating disorder, finding that “just right” dose is a delicate balance. Taking more than your body needs can lead to uncomfortable overstimulation and other potentially serious side effects.
This article will explain the key signs that your Vyvanse dose is too high, when to seek help, recommended dosage, and more to help you make informed decisions for yourself and your children.
What Is Vyvanse?
Vyvanse is a prescription central nervous system stimulant used to treat Attention-Deficit/Hyperactivity Disorder (ADHD) in patients six years and older and moderate to severe Binge Eating Disorder (BED) in adults [1].
The active ingredient in Vyvanse is lisdexamfetamine. It’s a “prodrug,” which means it only becomes active after your body metabolizes it into dextroamphetamine. This active compound then works by adjusting the levels of brain chemicals responsible for focus, attention, and impulse control [2].
For those with ADHD, this can mean better concentration and less hyperactivity. For adults with BED, it helps reduce the compulsive urges to binge eat. This gradual activation process is also why Vyvanse is considered to have a lower potential for abuse compared to some other stimulants [3].
Forms and Common Dosages of Vyvanse
Vyvanse is designed for once-daily use and comes in two forms to accommodate different patient needs and preferences. Both are intended for once-daily use and deliver long-acting effects.
Capsules (10 mg to 70 mg): The most common form. They can be swallowed whole or, for easier intake, opened and mixed with yogurt, water, or orange juice.
Chewable Tablets (10 mg to 60 mg): An alternative for those who have trouble swallowing pills.
Most adults start at a dose of 30 mg once daily in the morning. From there, a doctor will adjust the dose based on how well it’s working and any side effects that appear. The maximum recommended daily dose is 70 mg [4, 5].
Factors That Affect Vyvanse Dosage.
Several key factors affect Vyvanse dosage, including a person’s age, weight, metabolism, co-existing medical conditions, and other medications they may be taking.
Key factors that affect Vyvanse dosage include:
Age: Children, teens, and adults often require different dosing ranges due to variations in how their bodies metabolize the medication.
Weight: Body weight can influence how the drug is absorbed and metabolized, especially in pediatric patients.
Metabolism: A faster or slower metabolism can impact how long Vyvanse stays active in your system.
Co-existing medical conditions: Conditions like anxiety, heart issues, or thyroid disorders may require dose adjustments.
Other medications: Certain drugs can interact with Vyvanse, potentially affecting its effectiveness or increasing the risk of side effects.
Due to these variables, doctors typically start with a low dose and gradually increase it, monitoring your progress along the way to ensure the treatment is both safe and effective [6].
How Much Vyvanse Is Too Much in a Day?
According to the FDA, the maximum recommended daily dose of Vyvanse is 70mg. Taking more than this significantly increases the risk of side effects and toxicity.
Some users may wonder, “Can you take 2 30mg Vyvanse in one day?” While that totals 60mg, which is under the limit, any changes in dosage should only be made under a doctor’s supervision. In rare cases, people may accidentally take more than prescribed. If you’ve taken 120mg of Vyvanse, seek immediate medical help for severe symptoms like tremors, paranoia, or cardiac issues.
5 Signs Your Vyvanse Dose Is Too High
When a Vyvanse dose is too high, it can cause overstimulation that disrupts your mental and physical well-being. While Vyvanse is meant to sharpen focus, an excessive dose can flip the switch from helpful to overwhelming. These symptoms occur because the excess medication overexcites the central nervous system, leading to both physical and psychological side effects. Ignoring these signs can lead to increased discomfort and potential health risks over time.
Here are five common signs that your Vyvanse dose may be too high:
Trouble Sleeping: Insomnia or difficulty staying asleep suggests overstimulation.
Increased Heart Rate: A racing heart at rest can indicate an excessive dose of Vyvanse.
Heightened Anxiety: Feeling nervous or experiencing panic attacks may signal an excessive dose.
Irritability or Mood Swings: Unusual short-temperedness or mood shifts can result from overstimulation.
Restlessness or Muscle Tension: An inability to sit still or muscle tightness may indicate that your dose needs adjustment.
Symptoms of a High Vyvanse Dosage.
In addition to the more common side effects like insomnia or anxiety, taking too much Vyvanse can lead to a range of physical and behavioral symptoms that signal the dose may be too high for your body. These effects can interfere with daily functioning and may even pose health risks if left unaddressed.
Some additional physical symptoms of an excessive Vyvanse dose include:
Nausea
Dizziness
Headache
Blurred vision
Excessive sweating
Beyond physical discomfort, certain behavioral changes can also indicate overuse, such as:
Compulsive talking
Obsessive focus on tasks
Manic-like energy or mood
What Happens When the Vyvanse Dose Is Too Low?
While high doses of Vyvanse can lead to overstimulation, a dose that’s too low may fail to properly manage symptoms of ADHD or binge eating disorder. If your medication isn’t providing noticeable benefits, or if symptoms return shortly after taking it, your current dosage might not be sufficient. Feeling tired, unfocused, or unmotivated throughout the day could signal underdosing.
Common signs that your Vyvanse dose may be too low include:
Daytime fatigue
Trouble concentrating
Impulsive behavior
Short attention span [7]
Signs Vyvanse Dose Is Too High for a Child
Children are susceptible to stimulant medications, and even a small change in dosage can lead to noticeable effects. A dose that’s too high may trigger unwanted physical or emotional reactions, disrupting behavior and well-being.
Watch for these signs that a child’s Vyvanse dose may be too high:
Loss of appetite or weight loss
Difficulty sleeping or staying asleep
Moodiness, tearfulness, or irritability
Rebound effects (worsening of symptoms as the medication wears off)
When to Call a Doctor
While most side effects are mild and manageable, some symptoms require immediate medical attention. Call your doctor or seek emergency care if you experience:
Chest pain
Hallucinations
Fainting or loss of consciousness
Can you take two 30mg Vyvanse Pills in one day?
No, taking two 30mg Vyvanse pills in one day without medical direction can be dangerous. Vyvanse is a prescription stimulant medication with a recommended starting dose of 30mg daily. Taking more than the prescribed amount increases the risk of serious side effects, overdose, and long-term health complications.
Vyvanse (lisdexamfetamine dimesylate) is typically prescribed for ADHD and binge eating disorder. It’s designed to be taken once a day and is known for its extended-release mechanism, which provides a steady therapeutic effect over several hours. Doubling the dose can intensify the drug’s impact on the nervous system and lead to complications such as elevated heart rate, anxiety, or worse.
What Happens If You Accidentally Take 120mg of Vyvanse?
Accidentally taking 120mg of Vyvanse can result in serious side effects and may require medical attention. Common symptoms include restlessness, tremors, rapid heartbeat, confusion, and potentially psychosis in high doses.
If you or someone you know has accidentally taken more than the prescribed dose, contact a healthcare provider immediately. In emergency cases, calling Poison Control (1-800-222-1222 in the U.S.) or going to the nearest ER is recommended. Overdosing on stimulants like Vyvanse is not uncommon, especially when dosages are self-adjusted.
Common Dosages for Children
Children usually start with a 30mg dose, which may be adjusted in 10mg increments. The maximum recommended dosage for children is typically 70mg per day. This medication must be administered exactly as prescribed to avoid potential side effects.
A healthcare provider should always supervise adjustments. Increasing a child’s dosage without medical advice can increase the likelihood of developing tolerance or experiencing stimulant-related complications [7].
Signs Vyvanse Dose is Too High for a Child
Signs that a child’s Vyvanse dose is too high can include extreme mood swings, insomnia, decreased appetite, or heart palpitations. Children may also become unusually anxious, aggressive, or complain of stomachaches or headaches.
Other common symptoms:
Nervousness or jitteriness
Difficulty sleeping
Sudden changes in behavior
Persistent nausea or dizziness
Skin picking or repetitive behaviors
These symptoms should not be ignored. If a parent or caregiver notices any of these signs, it’s essential to consult the prescribing physician to reassess the dosage.
FAQ’S
1. Can you take 2 30mg Vyvanse pills in one day?
No, taking two 30mg Vyvanse pills (60mg total) in one day should only be done under direct medical supervision. While 60mg is below the 70mg daily maximum, doubling your dose without a doctor’s guidance can lead to overstimulation, anxiety, heart issues, and other side effects. Always consult your doctor before making any changes to your dosage.
2. What happens if you accidentally take 120mg of Vyvanse?
Accidentally taking 120mg of Vyvanse can be dangerous and requires immediate medical attention. Common symptoms include confusion, tremors, rapid heartbeat, nausea, and potentially psychosis. If you or someone you know has taken 120mg by mistake, contact Poison Control (1-800-222-1222) or seek emergency care right away.
3. What are the signs that the Vyvanse dose is too high for a child?
Signs that a child’s Vyvanse dose may be too high include mood swings, irritability, insomnia, loss of appetite, and restlessness. You might also notice increased anxiety, stomachaches, or unusual behavior changes. If any of these symptoms appear after a dose adjustment, talk to your child’s doctor promptly.
4. How much Vyvanse is too much in a day?
The FDA recommends a maximum daily dose of Vyvanse of 70mg. Taking more than this amount increases the risk of severe side effects, including cardiovascular issues, anxiety, and overdose symptoms. Never exceed your prescribed dose without consulting your healthcare provider first.
5. What happens when the Vyvanse dose is too low?
If your Vyvanse dose is too low, you may continue experiencing symptoms of ADHD or binge eating disorder, such as lack of focus, impulsivity, or low energy. In children, it may also present as hyperactivity or short attention span. If symptoms persist, a dosage reassessment may be necessary under the guidance of a medical professional.
Get Support for Vyvanse Dosage Concerns at Alliance Recovery
If you are struggling with problematic psychedelic or other substance use, professional help is available.
Here at Alliance Recovery, our executive leadership and admissions staff have extensive knowledge of addiction treatment, with many members of our team having gone through treatment themselves. Through years of their lives dedicated to service and striving to develop a connection with fellow addicts, our team has cultivated a passion for helping others who find themselves in the same position.
Our caring team offers:
Personalized medical consultations
Support for managing side effects and dosage adjustments
Comprehensive care focused on your overall well-being
Call our treatment team at (844) 287-8506 to get started.
Sources
[1] https://www.cdc.gov/ncbddd/adhd/treatment.html
[2] https://medlineplus.gov/druginfo/meds/a607047.html
[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10563459/
[4] https://www.drugs.com/dosage/vyvanse.html
[5] https://www.accessdata.fda.gov/drugsatfda_docs/label/2017/208510s001lbl.pdf
[6] https://www.verywellhealth.com/vyvanse-dosage-5213192
