Vyvanse (lisdexamfetamine) is a prescription medication commonly used in Australia to treat attention deficit hyperactivity disorder (ADHD) and moderate to severe binge eating disorder. While Vyvanse can be very effective, like all medications, it may cause side effects. Understanding these potential effects can help you manage them and know when to seek medical advice.
Common Side Effects
Many people taking Vyvanse experience mild to moderate side effects, especially when starting treatment. These often improve as your body adjusts. Common side effects include:
- Decreased appetite
- Insomnia or trouble sleeping
- Dry mouth
- Headache
- Upper abdominal pain or stomach discomfort
- Weight loss
- Feeling tired or fatigued
- Nausea and vomiting
- Dizziness
- Irritability or anxiety
- Diarrhea or constipation
These symptoms are generally manageable and temporary. If they persist or worsen, it’s important to discuss them with your healthcare provider.
Less Common Side Effects
Some people may experience less frequent side effects such as:
- Teeth grinding or jaw clenching
- Excessive sweating
- Mood changes, including depression or irritability
- Vision problems like blurry or double vision
- Circulation issues in fingers or toes (Raynaud’s phenomenon)
- Sexual side effects such as decreased libido or erectile dysfunction
If you notice any of these symptoms, inform your doctor promptly.
Serious Side Effects
Though rare, Vyvanse can cause serious side effects that require immediate medical attention. These include:
- Allergic reactions: rash, itching, swelling, difficulty breathing
- Chest pain or tightness
- Shortness of breath
- Irregular heartbeat
- Seizures (fits)
- Severe mood or behavior changes: confusion, hallucinations, aggression, suicidal thoughts
- Severe dizziness or fainting
If you or someone you know experiences these symptoms, seek emergency medical care immediately.
Important Safety Information
Vyvanse is a controlled substance in Australia due to its potential for abuse and dependence. It should be taken exactly as prescribed and stored securely to prevent misuse. Never share your medication with others.
Managing Side Effects
- Take Vyvanse in the morning to reduce insomnia risk.
- Stay hydrated and maintain a balanced diet to help with dry mouth and appetite changes.
- Practice good sleep hygiene to improve rest.
- Report any mood changes or unusual symptoms to your healthcare provider promptly.
- Never stop or change your dose without consulting your doctor.
Summary
Vyvanse can cause a range of side effects, from common mild issues like decreased appetite and insomnia to rare but serious problems such as allergic reactions and mood disturbances. Most side effects improve over time or with medical support. If you experience any concerning symptoms while taking Vyvanse in Australia, contact your healthcare professional for advice and support.