Vyvanse / Lisdexamfetamine → 🇸🇬 Singapore

Full details

Vyvanse / Lisdexamfetamine prohibited; penalties for import. Quantity guidance for Singapore: Not approved by HSA Singapore — lisdexamfetamine is a Class A controlled drug; no personal importation permitted. Documentation: HSA prior approval required — typically not granted for unapproved Class A stimulants; Written notification to CNB (Central Narcotics Bureau) if attempting to apply. Enforcement in Singapore carries fines from SGD 10,000 to SGD 500,000 and imprisonment up to 20 years in aggravated cases under Customs Act 1960 s.130; Misuse of Drugs Act 1973. Because vyvanse / lisdexamfetamine is prohibited rather than restricted, there is no permit route for an ordinary traveller — attempted import is treated as smuggling regardless of intent. Arrival checks are carried out by Singapore Customs; when in doubt use the declare (red) channel — declared goods at worst attract duty or surrender, while undeclared goods attract penalties. Leaving Singapore with vyvanse / lisdexamfetamine is a separate question: restricted — Vyvanse (lisdexamfetamine) is a controlled stimulant; personal export from Singapore requires prescription documentation and stays within personal-use limits.

ENFORCEMENT

Active — Customs actively enforces this rule.

Leaving Singapore with vyvanse / lisdexamfetamine

Lisdexamfetamine is a Schedule II-equivalent controlled stimulant under the Misuse of Drugs Act 1973; HSA personal-export permit framework. Personal-use quantities (typically ≤30-90 days' supply) accompanied by the prescription and doctor's letter are generally permitted for export from Singapore; above these limits a HSA personal export permit is required in advance. Destination-side treatment is the sharper risk — several countries (Japan requires advance permission; some jurisdictions ban amphetamine-class medicines outright) restrict arrival with stimulant ADHD medication, so verify the arrival rule for the same route.

OFFICIAL SOURCES · VERIFIED 2026-08-22