Vyvanse (lisdexamfetamine) is a prescription medication commonly used in Australia to treat attention deficit hyperactivity disorder (ADHD) in children aged 6 years and older, adolescents, and adults, as well as moderate to severe binge eating disorder (BED) in adults. Understanding the correct dosage and how to take Vyvanse is important to ensure its effectiveness and safety.
Starting Dose and Administration
The usual starting dose of Vyvanse for both ADHD and binge eating disorder in Australia is 30 mg once daily, taken in the morning. This timing helps reduce the risk of insomnia and aligns the medication’s peak effect with the day’s activities.
Vyvanse capsules can be swallowed whole, with or without food. If swallowing capsules is difficult, the capsule can be opened and the powder mixed with soft food like yogurt or juice – but it should be consumed immediately and completely.
Dosage Adjustments
Your doctor may increase the dose gradually, usually in increments of 10 mg or 20 mg, at approximately weekly intervals, to find the dose that best manages your symptoms with minimal side effects.
- For ADHD, the typical dose range is 30 mg to 70 mg once daily.
- For moderate to severe binge eating disorder, the target dose is usually between 50 mg and 70 mg once daily. If there is no improvement after 12 weeks, your doctor may consider discontinuing Vyvanse.
The maximum recommended dose for both conditions is 70 mg per day.
Dosage for Children
Vyvanse is approved for children aged 6 years and older with ADHD. The starting dose is also 30 mg once daily, with gradual adjustments as needed. Children on Vyvanse should have their height and weight monitored regularly, as the medication can affect growth.
Special Considerations
- Renal impairment: Patients with severe kidney problems may require lower maximum doses (not exceeding 50 mg daily), and those with end-stage renal disease should not exceed 30 mg daily.
- Drug interactions: Certain medications or substances that alter urinary pH can affect Vyvanse blood levels, so dosage adjustments may be necessary.
Summary
- Start with 30 mg once daily in the morning.
- Dose may be increased gradually up to 70 mg daily, depending on response and tolerability.
- For binge eating disorder, doses typically range from 50 mg to 70 mg daily.
- Children aged 6 and older start at 30 mg daily, with regular growth monitoring.
- Always follow your doctor’s instructions and never adjust your dose without medical advice.
If you have any questions about your Vyvanse dosage or how to take it, speak with your healthcare provider or pharmacist for personalised guidance.