Can Vyvanse make you angry?
Yes. Vyvanse (lisdexamfetamine) can cause mood changes, including irritability or feeling angry. Stimulant effects can also raise “reactivity,” which some people experience as impatience, short temper, or agitation. Irritability is listed among possible side effects of ADHD medications in the same stimulant class. [1]
What feelings besides anger are common on Vyvanse?
People may notice mood and behavioral changes such as:
- Irritability or crankiness
- Anxiety or feeling on edge
- Restlessness or agitation
These can occur soon after starting Vyvanse or after dose increases. [1]
Why might Vyvanse increase irritability?
Several mechanisms can contribute, including increased dopamine/norepinephrine signaling (the intended ADHD effect) plus stimulant-related side effects like sleep disruption, appetite changes, or a “too-high dose” feeling. If your dose is higher than you need, you may feel overactivated, which can come across as anger or agitation. [1]
When should you call a doctor about anger or mood changes?
Contact your prescriber promptly if anger/irritability is:
- New or worsening after starting Vyvanse
- Severe enough to affect relationships, work, or safety
- Along with signs of serious stimulant reactions, such as hallucinations, severe agitation, or signs of mania/psychosis
If any severe symptoms are present, seek urgent care or emergency help. [1]
Could it be too much medicine or the timing?
Yes. Common patterns include:
- Symptoms appear after a dose increase
- Symptoms happen as the medication is wearing off or as it begins to peak (for some people)
- Sleep loss makes mood worse the next day
Your prescriber may adjust the dose, timing, or switch treatment if irritability persists. [1]
What’s the difference between “anger” and serious mood or mental health symptoms?
Irritability can be a side effect. But if you also have symptoms like unusually elevated mood, decreased need for sleep, racing thoughts, or risky behavior, it could suggest mania or hypomania, which requires prompt medical evaluation. [1]
What can help if Vyvanse makes you more irritable?
A clinician may recommend changes such as:
- Adjusting dose or dose schedule
- Addressing sleep, nutrition, and caffeine use (caffeine can worsen agitation for some)
- Monitoring mood changes closely after starting or changing dose
Do not stop Vyvanse abruptly without medical guidance. [1]
Sources
[1] FDA. “Vyvanse (lisdexamfetamine dimesylate) prescribing information.” https://www.accessdata.fda.gov/scripts/cder/daf/