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HA Drug Formulary
Version 21.3 – with effect from 31 January 2026
  1. The drugs may either be listed as generic or proprietary names, where appropriate. Brand names listed serve as reference only, they do not necessarily indicate the availability of that particular brand.
  2. Some drugs may appear in more than one category due to different formulations and/or indications.
  3. The "Special" drugs will be prescribed as clinically indicated based on the specified indications.
  4. Based on operational logistics and needs, individual cluster/hospital may only stock part of the drugs listed on the HA Drug Formulary.
Drug classes
Result of:
Central Nervous
General Drugs Special Drugs Self-financed Items
with Safety Net		 Self-financed Items
without Safety Net
Central Nervous
General Drugs Special Drugs Self-financed Items
with Safety Net		 Self-financed Items
without Safety Net
HYPNOTICS AND ANXIOLYTICS
ALPRAZOLAM
BROMAZEPAM
BUSPIRONE
CHLORAL HYDRATE
CHLORDIAZEPOXIDE
CHLORMETHIAZOLE
DIAZEPAM
FLUNITRAZEPAM
LORAZEPAM
MELATONIN
MIDAZOLAM
NITRAZEPAM
TRIAZOLAM
ZOLPIDEM
ZOPICLONE
DRUGS USED IN PSYCHOSES AND RELATED DISORDERS
AMISULPRIDE ARIPIPRAZOLE
ARIPIPRAZOLE CLOZAPINE
BREXPIPRAZOLE PALIPERIDONE
CHLORPROMAZINE RISPERIDONE
FLUPENTHIXOL
FLUPHENAZINE
HALOPERIDOL
LITHIUM CARBONATE
LURASIDONE
OLANZAPINE
PALIPERIDONE
PERICYAZINE
PIMOZIDE
QUETIAPINE
RISPERIDONE
SULPIRIDE
TRIFLUOPERAZINE
ZIPRASIDONE
ZUCLOPENTHIXOL
ANTIDEPRESSANT DRUGS
AMITRIPTYLINE AGOMELATINE
CITALOPRAM BUPROPION
CLOMIPRAMINE DESVENLAFAXINE
DEANXIT (OR EQUIV) DULOXETINE
DOTHIEPIN ESKETAMINE (NASAL)
DOXEPIN FLUVOXAMINE
ESCITALOPRAM MILNACIPRAN
FLUOXETINE PAROXETINE
FLUPENTHIXOL VENLAFAXINE
IMIPRAMINE VORTIOXETINE
MIANSERIN
MIRTAZAPINE
MOCLOBEMIDE
NORTRIPTYLINE
PAROXETINE
SERTRALINE
TRAZODONE
TRIMIPRAMINE
CNS STIMULANTS AND OTHER DRUGS USED FOR ATTENTION DEFICIT HYPERACTIVITY DISORDER
ATOMOXETINE
LISDEXAMFETAMINE
METHYLPHENIDATE
DRUGS USED IN NAUSEA AND VERTIGO
BETAHISTINE APREPITANT
CINNARIZINE FOSAPREPITANT
DIMENHYDRINATE FOSNETUPITANT + PALONOSETRON
DIMENHYDRINATE (SUPP) GRANISETRON
DOMPERIDONE NETUPITANT + PALONOSETRON
FLUNARIZINE ONDANSETRON
HYOSCINE (PATCH)
METOCLOPRAMIDE
PROCHLORPERAZINE
PROMETHAZINE
ANALGESICS
ALCOHOL ABSOLUTE (INJECTION) BUPRENORPHINE (PATCH) ERENUMAB
ASPIRIN DULOXETINE FREMANEZUMAB
BUPRENORPHINE FENTANYL (PATCH) GALCANEZUMAB
CAFERGOT (OR EQUIV) MORPHINE RIMEGEPANT
CARBAMAZEPINE OXYCODONE
CLONIDINE PARACETAMOL
CODEINE PHOSPHATE ZOLMITRIPTAN
DIHYDROCODEINE
GABAPENTIN
METHADONE
MORPHINE
PARACETAMOL
PARACETAMOL (SUPP)
PETHIDINE
PIZOTIFEN
PREGABALIN
SUMATRIPTAN
TRAMADOL
ANTIEPILEPTICS
CARBAMAZEPINE BRIVARACETAM
CLOBAZAM CENOBAMATE
CLONAZEPAM LACOSAMIDE
DIAZEPAM LAMOTRIGINE
DIAZEPAM (RECTAL) OXCARBAZEPINE
ETHOSUXIMIDE PERAMPANEL
GABAPENTIN RUFINAMIDE
LEVETIRACETAM TOPIRAMATE
PHENOBARBITONE VIGABATRIN
PHENYTOIN
PREGABALIN
VALPROATE SODIUM
DRUGS USED IN PARKINSONISM AND RELATED DISORDERS
AMANTADINE BOTULINUM TYPE A TOXIN
BENZHEXOL PRAMIPEXOLE
BENZTROPINE RASAGILINE
BROMOCRIPTINE RILUZOLE
ENTACAPONE ROTIGOTINE
MADOPAR (OR EQUIV) SAFINAMIDE
PIRACETAM
ROPINIROLE
SELEGILINE
SINEMET (OR EQUIV)
STALEVO (OR EQUIV)
TETRABENAZINE
DRUGS USED IN SUBSTANCE DEPENDENCE
DISULFIRAM BUPRENORPHINE + NALOXONE
NALTREXONE NICOTINE
NICOTINE (PATCH)
DRUGS FOR DEMENTIA
DONEPEZIL DONEPEZIL
MEMANTINE GALANTAMINE
RIVASTIGMINE RIVASTIGMINE (PATCH)
MISCELLANEOUS (CENTRAL NERVOUS SYSTEM)
PYRITINOL