Description
R-ketamine (arketamine) is the other mirror-image form (enantiomer) of ketamine. Unlike S-ketamine (esketamine), it is still investigational and is not widely approved as a prescription medication.
🧠 Potential Benefits (Based on Early Research)
🌤️ Mind
- 💙 May produce antidepressant effects in people with depression.
- 🧘 May support emotional well-being and resilience.
- 💭 May help reduce persistent negative thought patterns.
- ✨ Some early studies suggest its antidepressant effects could last longer than S-ketamine, but more research is needed.
- 🌫️ May cause less dissociation than S-ketamine in some studies, though this has not been conclusively established.
💪 Body
- 🩹 Has anesthetic and pain-relieving properties similar to ketamine, though it is not routinely used clinically on its own.
- ⚡ May help reduce certain types of chronic pain, but evidence is still limited.
🔬 Research Status
- Currently being studied for:
- Treatment-resistant depression
- Major depressive disorder
- Chronic pain
- Other neuropsychiatric conditions
- It has not been approved in most countries as a standalone medication.
⚠️ Possible Side Effects
Although research is ongoing, reported side effects may include:
- 😵 Dizziness
- 😴 Drowsiness
- 🤢 Nausea
- 🤕 Headache
- ❤️ Temporary increases in blood pressure and heart rate
- 🌫️ Altered perception or dissociation (possibly less pronounced than with S-ketamine, but still possible)
🆚 R-ketamine vs. S-ketamine
| Feature | R-ketamine (Arketamine) | S-ketamine (Esketamine) |
|---|---|---|
| Approval status | Investigational | Approved in some countries for certain forms of depression |
| Research | Early clinical studies | Extensive clinical evidence |
| Antidepressant effects | Promising but not yet confirmed | Well established for approved uses |
| Dissociative effects | May be less pronounced (preliminary evidence) | More common |
| Clinical availability | Limited to research settings | Available by prescription in eligible patients |





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