Legal status · Australia
Is Orexin-A legal in Australia?
No. Orexin-A is not an approved medicine in Australia; its classification is "Not approved; Schedule 4 or import-restricted". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Preliminary.
Orexin-A in Australia at a glance
| Classification | Not approved; Schedule 4 or import-restricted |
|---|---|
| TGA approval status | Not approved by TGA |
| Evidence level | Preliminary (research strength: Preliminary) |
| Reviewed | Sep 2026 |
Classification and note come from the Orexin-A profile, checked against Therapeutic Goods Administration (TGA) listings at the reviewed date.
What this means
- 01
No product containing Orexin-A is approved by TGA for any use in Australia, so nothing on the market is authorized for people.
- 02
"Research use only" is a vendor label, not a legal category that permits human use. It does not exempt a product from medicines law.
- 03
Importing, supplying or promoting it for human use can fall under medicines legislation in Australia. This page is general information, not legal advice.
What Orexin-A is
The wakefulness neuropeptide, sold as a nasal spray for alertness after a primate study showed intranasal delivery reversed sleep-deprivation deficits; no human efficacy trial exists and approved narcolepsy drugs use small molecules instead.
Orexin-A regulates arousal through OX1R and OX2R receptors, and its loss causes narcolepsy. In a well-designed 2007 study, nasal orexin-A restored cognitive performance in sleep-deprived monkeys better than intravenous dosing.
Mechanism: Agonism of hypothalamic orexin receptors OX1R and OX2R promoting wakefulness and arousal.
Regulatory history: Not approved
How TGA treats this kind of product
Registers or lists therapeutic goods on the ARTG and schedules substances in the Poisons Standard. Many peptides are Schedule 4 (prescription only), so possession without a prescription and personal importation are restricted even when no product is registered.
The classification above is the The Longevity Archive reading of Therapeutic Goods Administration listings for Orexin-A at the reviewed date, not a legal opinion. Rules change, and importing, prescribing and possessing a compound can each be treated differently. Check the regulator directly before acting on anything here.
Orexin-A in other countries
Frequently asked questions
Is Orexin-A legal in Australia?
No. Orexin-A is not an approved medicine in Australia; its classification is "Not approved; Schedule 4 or import-restricted". Nothing containing it is authorized for any use in people. Vials labeled "for research use only" are not exempt: that label does not make human use lawful. Human evidence: Preliminary.
Can I buy Orexin-A in Australia?
No approved product exists to buy. In Australia Orexin-A is classified as "Not approved; Schedule 4 or import-restricted", so there is no licensed pharmacy product. Vendors selling it "for research use only" are not selling it for human use, and that label does not change its legal status. This site does not list or recommend vendors.
Is Orexin-A TGA approved?
No. In Australia Orexin-A is classified as "Not approved; Schedule 4 or import-restricted", which is not a TGA marketing approval. For comparison, the US FDA status is: Not approved. Evidence level: Preliminary.
Related compounds in Australia
Full research profile
Mechanism, cited studies, FDA status and the full legal summary for Orexin-A live on its compound profile.
Orexin-A profileThis page is general information about the regulatory status of Orexin-A in Australia, current as of Sep 2026. It is not legal advice, and classifications change; check Therapeutic Goods Administration directly or consult a lawyer for a specific situation. Educational use only. This database summarizes published research. It is not medical advice and contains no dosing protocols or recommendations for personal use. The Longevity Archive has no vendor relationships and does not recommend where to buy anything.