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CNS stimulant (Schedule 2 CD)

Dexamfetamine sulfate

Brand names: Amfexa

Adult dose

Dose: ADHD: titrate from 5mg OD–BD up to 1mg/kg/day per protocol
Route: Oral
Frequency: OD–TDS

Clinical pearls

  • NICE NG87 ADHD: dexamfetamine option after methylphenidate / lisdexamfetamine trials
  • Schedule 2 CD — strict prescribing
  • Specialist initiation; growth and CV monitoring in paediatrics

Contraindications

  • Cardiovascular disease
  • Severe hypertension
  • Hyperthyroidism
  • Mania / psychosis
  • Glaucoma
  • Concurrent or recent MAOI
  • Pregnancy
  • Hypersensitivity

Side effects

  • Reduced appetite / weight loss / growth retardation (children)
  • Insomnia
  • Tachycardia/hypertension
  • Anxiety
  • Tics
  • Dependence and abuse
  • Cardiac events
  • Psychosis

Interactions

  • MAOIs (avoid)
  • Tricyclics
  • Alkalinising agents (delay excretion)

Monitoring

  • BP
  • HR
  • Weight / height (children)
  • Mental state
  • Tics

Reference: BNF; NICE NG87; MDR Schedule 2; https://bnf.nice.org.uk/drugs/dexamfetamine-sulfate/. Verify against your local formulary and the latest BNF before prescribing.

Related

Curated clinical cross-links plus same-class fallbacks.