Lisdexamfetaminedosage
lisdexamfetamine dimesylate 20 MG Chewable Tablet
Dosage and administration
Indicated Population Initial Dose Titration Schedule Recommended Dose Maximum Dose ADHD (Adults and pediatric patients 6 years and older) 30 mg every morning 10 mg or 20 mg weekly 30 mg to 70 mg per day 70 mg per day BED (Adults) 30 mg every morning 20 mg weekly 50 mg to 70 mg per day 70 mg per day Prior to treatment, assess for presence of cardiac disease.
Severe renal impairment: Maximum dose is 50 mg/day. End stage renal disease (ESRD): Maximum dose is 30 mg/day.
2.1 Pretreatment
Screening Prior to treating patients with lisdexamfetamine dimesylate chewable tablets, assess: for the presence of cardiac disease (i.e., perform a careful history, family history of sudden death or ventricular arrhythmia, and physical exam). the family history and clinically evaluate patients for motor or verbal tics or Tourette’s syndrome before initiating lisdexamfetamine dimesylate chewable tablets.
2.2 General
Administration Information Take lisdexamfetamine dimesylate chewable tablets orally in the morning with or without food; avoid afternoon doses because of the potential for insomnia. Lisdexamfetamine dimesylate chewable tablets may be administered in one of the following ways: Information for lisdexamfetamine dimesylate chewable tablets: Lisdexamfetamine dimesylate chewable tablets must be chewed thoroughly before swallowing. Vyvanse ® Capsules can be substituted with lisdexamfetamine dimesylate chewable tablets on a unit per unit/mg per mg basis (for example, 30 mg capsules for 30 mg chewable tablet). Do not take anything less than one chewable tablet per day. A single dose should not be divided.
2.3 Dosage for
Treatment of ADHD The recommended starting dosage in adults and pediatric patients 6 years and older is 30 mg once daily in the morning. Dosage may be adjusted in increments of 10 mg or 20 mg at approximately weekly intervals up to maximum recommended dosage of 70 mg once daily.
2.4 Dosage for
Treatment of Moderate to Severe BED in Adults The recommended starting dosage in adults is 30 mg once daily to be titrated in increments of 20 mg at approximately weekly intervals to achieve the recommended target dose of 50 mg to 70 mg once daily. The maximum recommended dosage is 70 mg once daily. Discontinue lisdexamfetamine dimesylate chewable tablets if binge eating does not improve.
2.5 Dosage in
Patients with Renal Impairment In patients with severe renal impairment (GFR 15 to <30 mL/min/1.73 m 2 ), the maximum dosage should not exceed 50 mg once daily. In patients with end stage renal disease (ESRD, GFR <15 mL/min/1.73 m 2 ), the maximum recommended dosage is 30 mg once daily.
2.6 Dosage Modifications
Due to Drug Interactions Agents that alter urinary pH can impact urinary excretion and alter blood levels of amphetamine. Acidifying agents (e.g., ascorbic acid) decrease blood levels, while alkalinizing agents (e.g., sodium bicarbonate) increase blood levels. Adjust lisdexamfetamine dimesylate chewable tablets dosage accordingly.
Text above is quoted in full from the FDA-approved drug label published by openFDA, effective November 24, 2025. Matched to this product by RxNorm code. Cross-references to other sections of the full prescribing information have been removed, since they point to a document not shown here. Nothing else is changed: no sentence is shortened, reworded or summarised.
This page reproduces regulatory text for reference. It is not medical advice, and KenyRx is not a pharmacy or a prescriber. Talk to a doctor or pharmacist about whether a medicine is right for you.
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